Shorts/Bottoms

A practical, comfortable tight with high-visibility reflective elements. - Bibtight in warm stretch fabric - Mesh bib straps with graphic - Panel on the calf with reflective elements - Flat-lock stitching - BodyFit Pro seat pad

A practical, comfortable tight with high-visibility reflective elements. - Bibtight in warm stretch fabric - Mesh bib straps with graphic - Panel on calf with reflective elements - Flat-lock stitching - Comfort Pro W seat pad

Elevate your ride to unmatched comfort for every rider with our Specialized Foundation Bib Shorts. The high-stretch fabric offers a low-compression fit, combining comfort and support seamlessly. Plush elastic suspenders, along with a lightweight back panel, ensure a soft feel against your skin while aiding temperature control. The elasticated cuff with silicone gripper provides a gentle, secure hold on your legs, preventing ride-up and distractions. Designed with your ultimate comfort in mind, these bib shorts feature our advanced Single Density Body Geometry 3D Chamois for unparalleled cushioning. Plus, our commitment to sustainability shines through with the fabric composition, made from 80% recycled nylon and 20% recycled elastane, ensuring you not only ride in comfort but also with a conscience. Choosing the perfect pair of bib shorts just got easier. Experience the ride of a lifetime with our Specialized Foundation Bib Shorts. - The low compression fit of our Specialized Foundation Bib Shorts is more forgiving than our other fits, making it more comfortable for more body types—striking the perfect balance of supportive yet not overly restrictive. - Stretchy elastic suspenders are plush and soft against the skin. - Lightweight back panel supports bib straps and aids temperature control. - Elasticated cuff with silicone gripper provides a gentle, secure hold on the legs. - Single density Body Geometry 3D Chamois. - Fabric Content: MAIN: 80% Recycled Nylon, 20% Recycled Elastane, OTHER: 80% Nylon, 20% Elastane

Elevate your ride to unmatched comfort for every rider with our Specialized Foundation Shorts. The high-stretch fabric offers a low-compression fit, combining comfort and support seamlessly. The elasticated cuff with silicone gripper provides a gentle, secure hold on your legs, preventing ride-up and distractions. Designed with your ultimate comfort in mind, these shorts feature our advanced Single Density Body Geometry 3D Chamois for unparalleled cushioning. Plus, our commitment to sustainability shines through with the fabric composition, made from 80% recycled nylon and 20% recycled elastane, ensuring you not only ride in comfort but also with a conscience. Choosing the perfect pair of shorts just got easier. Experience the ride of a lifetime with our Specialized Foundation Shorts. - The low compression fit of our Specialized Foundation Shorts is more forgiving than our other fits, making it more comfortable for more body types—striking the perfect balance of supportive yet not overly restrictive. - Soft waist elastic with silicone print holds the shorts in place. - Elasticated cuff with silicone gripper provides a gentle, secure hold on the legs. - Single density Body Geometry 3D Chamois. - Fabric Content: MAIN: 80% Recycled Nylon: 20% Recycled Elastane: OTHER: 80% Nylon: 20% Elastane

A good pair of tights should be towards the top of your winter riding essentials list, and the RBX Tights are no exception. They were purposefully constructed without a chamois, and the reason is pretty simple. For those who prefer to keep riding in their favorite bib shorts year-round, you're able to simply layer these tights over your shorts for predictable comfort and added warmth. And for anyone seeking out versatility, these tights will be perfect for use in other disciplines like Nordic skiing, running, or snowshoeing. - Articulated design ensures the perfect fit while in the riding position. - Fabric Content: 78% Nylon, 22% Spandex Knit - Four-way stretch fabric provides ample comfort and a soft hand against the skin. - No chamois included in this tight allows you to wear it over your favorite bib shorts or shorts, extending the wearability of this piece when you need the extra leg protection. - Reflective elements increase your visibility to motorists in low-light conditions. - UPF 50+ rating protects your skin from harmful ultraviolet rays.

Our Trail Shorts are an essential for any trail rider's wardrobe. They're lightweight, durable, and downright comfortable—everything you need for an afternoon shred. - 13.5" inseam (size 34 waist) fall low around the knee for a roomy fit that leaves plenty of room for pads. - Deflect UV 50+ protects your skin from harmful ultraviolet rays. - Does not include a liner. - Fabric Content: 100% Polyester - Front fly and button closure. - One zippered pocket and one hand pocket provide convenient, secure space to store your trail essentials. - Side waist adjustment tabs ensure that the fit of the shorts is easily customizable and dialed-in, even when your pockets are loaded. - VaporRize woven fabrics are durable, stretchy, and lightweight for peace of mind on the trail.

Our Trail Shorts are an essential for any trail rider's wardrobe. They're lightweight, durable, and downright comfortable—everything you need for an afternoon shred. Plus, they come with a removable liner with our Mountain Body Geometry chamois that your posterior will be thankful for. - 13.5" inseam (size 34 waist) fall low around the knee for a roomy fit that leaves plenty of room for pads. - Deflect UV 50+ protects your skin from harmful ultraviolet rays. - Fabric Content: SHELL: 100% Polyester; LINER: 85% Polyester, 15% Spandex - Front fly and button closure. - One zippered pocket and one hand pocket provide convenient, secure space to store your trail essentials. - Removable liner with Mountain Body Geometry chamois is light and breathable, while the chamois effectively relieves pressure on the soft tissue and encourages proper blood flow. - Side waist adjustment tabs ensure that the fit of the shorts is easily customizable and dialed-in, even when your pockets are loaded. - VaporRize woven fabrics are durable, stretchy, and lightweight for peace of mind on the trail.

When it comes to choosing the perfect cycling shorts, comfort is everything. Whether you're going fast or just cruising, it's important to know that you'll be comfy. For riders who want premium materials, superior fit, and technologies that you won't find anywhere else, the new RBX Shorts are the jam. The soft four-way stretch fabric and articulated design ensure a perfect fit, but where the real comfort comes is from our new 3D Chamois. It features a pre-molded shape that matches the curve of your saddle, reducing wrinkles and hot spots. Top it off with a super soft top sheet to reduce friction and you're left with all day comfort. - Four-way stretch fabric provides ample comfort and a soft hand. - Silicone-infused fabric cuff provides a gentle, secure hold on the legs in order to ensure the perfect, shift-free fit. - Articulated design ensures the perfect fit while in the riding position. - Reflective elements increase your visibility to motorists in low-light conditions. - UPF 50+ rating protects your skin from harmful ultraviolet rays. - 3D Chamois is pre-molded to match the shape of the body for exceptional comfort. - Slim Fit with a 10.5" inseam (size Medium).

With our new Race-Series Bib Tights, you can look Old Man Winter in the face and tell 'em to "bring the storm." Featuring a soft shell knit fabric, paired with insulating thermal panels, these bib tights keep you plenty warm on cold days, all without overheating. - Articulated cycling fit is designed to complement the body throughout the positions and movements of cycling, which eliminates any unwanted pinching, rubbing, or chafing. - Body Geometry 3D Contour chamois. - Reflective elements increase your visibility to motorists in low-light conditions. - Soft Shell is a knit fabric with remarkable insulating properties, as well as being wind- and water-resistant and highly breathable. We've also included insulating Thermal panels in selective locations of the tights to further the overall warmth. Fabric Content: - SOFTSHELL: 44% Polyester, 38% Nylon, 14% Elastane, 4% PU - THERMAL: 84% Nylon, 16% Elastane - UPPER: 95% Polyester, 5% Spandex

Whether you're going for style, protection, or a little of both, our Trail Pants are sure to be your go-to riding pant. We made them from a woven version of our lightweight and ultra-breathable VaporRize fabrics. As a result, the pants are more than tough enough to take repeated spills while you're finding your line (or losing it), without sacrificing anything to comfort. And to further this concept, they also include laser-perforated venting that's just as effective at dumping excess heat as mesh, only it doesn't create a weakness in the overall strength of the pants. In essence, this means that you won't find yourself blowing them out for a long time to come. In terms of fit, you'll find that these pants are plenty baggy enough to layer pads, but form-fitting enough to not get in the way. - Buckle waist adjustments ensure that the fit of the pant is easily customizable and dialed-in, even when your pockets are loaded. - Deflect UV 50+ protects your skin from harmful ultraviolet rays. - Designed to retain a loose and open rider-first fit while using pads and armor. - Fabric Content: MAIN FABRIC: 90% Nylon, 10% Elastane; OTHER: 82% Nylon, 18% Spandex - Laser-perforated venting adds sophisticated points of ventilation that don't detract from the durability or performance of the shorts. - Tapered leg helps to prevent anything getting caught in the chain. - Three zippered pockets provide ample, secure room to store everything that you need while you're out riding. - VaporRize woven fabrics are treated to be water-repellant, while remaining durable, stretchy, and lightweight for peace of mind on the mountain.

Elevate your ride to unmatched comfort for every rider with our Specialized Foundation Bib Shorts. The high-stretch fabric offers a low-compression fit, combining comfort and support seamlessly. Plush elastic suspenders, along with a lightweight back panel, ensure a soft feel against your skin while aiding temperature control. The elasticated cuff with silicone gripper provides a gentle, secure hold on your legs, preventing ride-up and distractions. Designed with your ultimate comfort in mind, these bib shorts feature our advanced Single Density Body Geometry 3D Chamois for unparalleled cushioning. Plus, our commitment to sustainability shines through with the fabric composition, made from 80% recycled nylon and 20% recycled elastane, ensuring you not only ride in comfort but also with a conscience. Choosing the perfect pair of bib shorts just got easier. Experience the ride of a lifetime with our Specialized Foundation Bib Shorts. - The low compression fit of our Specialized Foundation Bib Shorts is more forgiving than our other fits, making it more comfortable for more body types—striking the perfect balance of supportive yet not overly restrictive. - Stretchy elastic suspenders are plush and soft against the skin. - Lightweight back panel supports bib straps and aids temperature control. - Elasticated cuff with silicone gripper provides a gentle, secure hold on the legs. - Women's specific single density Body Geometry 3D Chamois. - Fabric Content: MAIN: 80% Recycled Nylon, 20% Recycled Elastane, OTHER: 80% Nylon, 20% Elastane

When it comes to choosing the perfect pair of bib shorts, comfort is everything. And for anyone whose rides demand premium materials, superior fit, and cutting-edge technologies, the new Women's RBX bib shorts are sure to be your jam. We designed an open suspender fit and bib construction that's engineered to keep the shorts up and in-place without constricting the upper body. The stretchy elastic suspenders are uber plush and soft against the skin and accommodate taller torso lengths with ease. A non-stretch, sail cloth center back panel is laser-cut for breathability and anchors the back of the shorts for added stability. Silicone-infused fabric cuffs, meanwhile, provide a gentle, secure hold on the legs in order to ensure the perfect, shift-free fit. Our new Body Geometry Contour chamois also adds unrivaled comfort by minimizing its total footprint and keeping only what's structurally necessary. This minimizes pressure on nerves and soft tissue, while also maintaining the optimal level of support. - Four-way stretch fabric provides ample comfort and a soft hand - HookUp magnetic bib connection at the lower back eases entry and exit for nature breaks - Silicone-infused fabric cuff provides a gentle, secure hold on the legs in order to ensure the perfect, shift-free fit - Soft mesh bib uppers with binding provide a comfortable hold - Articulated design ensures the perfect fit while in the riding position - Reflective elements increase your visibility to motorists in low-light conditions - UPF 50+ rating protects your skin from harmful ultraviolet rays. - Single-density-foam, Women's-specific Body Geometry Contour Chamois is pre-molded to match the shape of the body for exceptional comfort - Women's-specific Slim Fit with an 8" inseam

Cold legs make for bad rides, and bad rides are no fun. Lucky for you, the RBX Comp Thermal Bib Knickers keep your legs toasty on chilly days. And to top off the comfort, we've used our Body Geometry 3D Contour Chamois with a variable density design that places support and padding where you need it, not where you don't. - Fabric Content: 70% Polyamide; 30% Elastane - Front waist construction has folded fabric band, which offers freedom of movement while riding, and rear inner soft elastic band. - Fully made of soft and stretchy Action 210 fleece.

When it comes to choosing the perfect cycling shorts, comfort is everything. Whether you're going fast or just cruising, it's important to know that you'll be comfy. For riders who want premium materials, superior fit, and technologies that you won't find anywhere else, the RBX Shorts are the jam. The soft four-way stretch fabric and articulated design ensure a perfect fit, but where the real comfort comes is from our Women's 3D Chamois. It features a pre-molded shape that matches the curve of your saddle, reducing wrinkles and hot spots. Top it off with a super soft top sheet to reduce friction and you're left with all-day comfort. - Four-way stretch fabric provides ample comfort and a soft hand - Silicone-infused fabric cuff provides a gentle, secure hold on the legs in order to ensure the perfect, shift-free fit - Articulated design ensures the perfect fit while in the riding position - Reflective elements increase your visibility to motorists in low-light conditions - UPF 50+ rating protects your skin from harmful ultraviolet rays - Women's-specific 3D Chamois is pre-molded to match the shape of the female body for superlative comfort - Women's-specific Slim Fit with an 8" inseam (size Medium)

A good pair of tights should be towards the top of your winter riding essentials list, and the RBX Tights are no exception. They were purposefully constructed without a chamois, and the reason is pretty simple. For those who prefer to keep riding in their favorite bib shorts year-round, you're able to simply layer these tights over your shorts for predictable comfort and added warmth. And for anyone seeking out versatility, these tights will be perfect for use in other disciplines like Nordic skiing, running, or snowshoeing. - Articulated design ensures the perfect fit while in the riding position. - Fabric Content: 78% Nylon, 22% Spandex Knit - Four-way stretch fabric provides ample comfort and a soft hand against the skin. - No chamois included in this tight allows you to wear it over your favorite bib shorts or shorts, extending the wearability of this piece when you need the extra leg protection. - Reflective elements increase your visibility to motorists in low-light conditions. - UPF 50+ rating protects your skin from harmful ultraviolet rays.

The perfect pair of bib shorts don't feel like bib shorts—they don't feel like you're wearing anything at all. And from here on out, you'll wish all of the bib shorts you race in would disappear beneath you like the new Women's SL bib shorts. You wanted top-shelf, and you got it. This unmatched comfort comes, in part, from our custom, pre-molded 3D Chamois. Not only is it pre-molded to the shape of your body and saddle to reduce wrinkles and pressure points, but it also features multi-density foam that ensures the utmost in comfort. The other half of the comfort equation comes from the fabrics and the fit. For example, the welded uppers get rid of seams altogether for the most comfortable straps possible, while an articulated design ensures the perfect fit when in the riding position. - Four-way stretch fabric provides ample comfort and a soft hand - HookUp magnetic bib connection at the lower back eases entry and exit for nature breaks - Welded bib upper construction reduces friction and dials-in the fit by reducing the need for seams. The bib upper fabric, meanwhile, incorporates a carbon yarn for anti-microbial and thermal regulation properties - Silicone-infused fabric cuff provides a gentle, secure hold on the legs in order to ensure the perfect, shift-free fit - Articulated design ensures the perfect fit while in the riding position - Reflective elements increase your visibility to motorists in low-light conditions - UPF 50+ rating protects your skin from harmful ultraviolet rays - Triple-density-foam, Women’s-specific Performance Body Geometry Contour 3D Chamois is pre-molded to match the shape of the body for exceptional comfort - Women's-specific Slim Fit with an 8" inseam (size Medium)

Our Trail Shorts are an essential for any trail rider's wardrobe. They're lightweight, durable, and downright comfortable—everything you need for an afternoon shred. - 11.5" inseam (size MD) fall low around the knee for a roomy fit that leaves plenty of room for pads. - Deflect UV 50+ protects your skin from harmful ultraviolet rays. - Does not include a liner. - Fabric Content: 100% Polyester - Front fly and button closure. - One zippered pocket and one hand pocket provide convenient, secure space to store your trail essentials. - Side waist adjustment tabs ensure that the fit of the shorts is easily customizable and dialed-in, even when your pockets are loaded. - VaporRize woven fabrics are durable, stretchy, and lightweight for peace of mind on the trail.

The legendary Pearl Izumi SELECT Pursuit Tri Short delivers comfort, durability, and a great fit. The SELECT Tri Short is ideal for both training and racing for all levels of triathletes. - SELECT Transfer Dry fabric sets the benchmark for compression and moisture transfer - Flatlock seams provide superior abrasion resistance - Plush elastic silicone leg gripper - Stretch draw cord for superior comfort and fit - One easy access envelope pocket - New TRI quick-dry chamois - Reflective elements for low-light visibility - 8 1/2-inch inseam (size medium) - 88% nylon 12% LYCRA elastane/UPF 50+; Imported

This Pearl Izumi Women's Interval Bib Shorts use more muscle hugging Lycra® than any short in Pearl's line for a performance feel the moment you slip them on. A sophisticated seven-panel design utilizes the stretch and recovery properties of the fabric to simplify the number of seams, allowing the short to smoothly follow your every movement. Seamless laser-cut bib straps provide the smooth support you desire from a bib, with a unique twist: they are connected only to the front and side of the short, allowing for a convenient drop-tail. The back waistband and hems use the same laser cut fabric for a low-bulk seamless feel and transition to skin. Equipped with our highly breathable premium Women’s ELITE Escape 1:1 Chamois for long-ride comfort. Features: - ELITE Transfer In-R-Cool fabric powered by coldblack provides optimal cooling and reflective sun protection - Women's ELITE Escape 1:1 Chamois is smooth next to skin, with free floating, 4-way stretch top sheet and 2-layer suspension core for plush comfort - Laser cut hems for seamless transition to skin - Seamless laser cut bib straps for barely-there comfort - Convenient drop-tail design - BioViz reflective elements for low-light visibility - 9" inseam

As the seasons change, pull on the Women's Pursuit Attack Cycling Tights. Made with our summer-weight Attack Short fabric, they are great choice for milder conditions when you want full leg coverage. Without a built in chamois, these tights can be worn as is, or paired with a favorite pair of cycling shorts for padded comfort. - SELECT Transfer fabric sets the benchmark for compression and moisture transfer - BioViz reflective elements for low-light visibility - BioViz Screaming color option for added daylight visibility - 28” inseam [size medium]

The legendary Pearl Izumi Women’s SELECT Pursuit Tri Short delivers comfort, durability, and a great fit. The Women’s SELECT Pursuit Tri Short is ideal for both training and racing for all levels of triathletes. - SELECT Transfer Dry fabric sets the benchmark for compression and moisture transfer - Flatlock seams provide superior abrasion resistance - Flattering wide waistband with flat stretch draw cord for superior comfort - Plush elastic silicone leg gripper - One easy-access envelope pocket - New TRI quick-dry chamois - Reflective elements for low-light visibility - 7-inch inseam (size medium) - FABRIC: 88% nylon, 12% LYCRA® elastane

Represent your favorite bike shop in Boulder Colorado wherever the road takes you with our 2023 Custom Men's Bibshort Castelli Competizione.

Represent your favorite bike shop in Boulder Colorado wherever the road takes you with our 2023 Custom Women's Bibshort Castelli Competizione.

The ultimate in speed and performance.

Technical performance that works on and off the bike.

Technical performance that works on and off the bike.

The Youth Defend short combines durability and 4-way stretch to keep you agile on the climb and covered on the descent. Ride with the Defend mountain bike short and push your limits on the toughest trails. - Ratchet closure provides a secure fit & quick on-the-fly adjustments - Secure zip hand pockets - TruMotion all-way stretch fabric for increased mobility - Body-mapping laser perforated areas on front & back keep you cool - Durable Water Resistant finish sheds moisture, dirt, & debris - Inseam: 7.5-inches - 94% polyester / 6% elastane

Technical performance that works on and off the bike. - TruMotion® stretch ripstop fabric maximizes performance on every ride - Relaxed fit for on-bike performance and off-bike styling - Removable liner with dual-density chamois for improved saddle comfort - Snap closure and adjustable side cinch for a secure fit and on the fly adjustments - TruDri™ lined waistband moves sweat and moisture away from the body keeping you comfortable and dry. - Two zip-closure hand pockets - Durable Water Repellent finish sheds moisture, dirt, and debris - Chamois, 92% Nylon/8% Spandex 2 Way Warp Stretch (C32608-r5)

The Thrill of Competition We made this short to incorporate as much technology as possible from our top-of-the-line pro-level race shorts at a more accessible price. And although it's certainly capable of weekend racing, it's also a great comfort performance short even if you never pin on a number. The main Vortex textured fabric and the Giro4 leg gripper come straight from our top Free Aero Race 4 Bibshort, while the KISS Air2 seat pad has most of the comfort of our top seat pad but represents maximum value. The intangible part that you'll appreciate most is our knack for building in perfect fit, thanks to the Castelli pattern engineering team. This is the short that brings the best of Castelli's know-how in building comfort performance shorts into an accessible product in your cycling wardrobe. - KISS Air2 seat pad for all-day comfort - Affinity Pro Lycra fabric on inside of leg for outstanding stretch and rebound - Vortex BLC textured fabric on legs for better aerodynamics - Giro4 leg gripper with raw edge for comfort and silicone stripes for grip - Flat-lock stitching - Reflective detailing on back - Mesh straps for comfort and breathability - 15°-35°C / 59°-95°F - Weight: 173g

The ultimate race short You know Castelli can make a great bike short. This one doesn't disappoint, thanks to amazing fit, the quick-drying instadry fabric that gives compressive muscle support, and the renowned kiss tri seat pad. New giro4 leg grippers hold the longer legs in place without riding up. For the swim we've made the short smoother through the water, and the back pocket will lie flat to avoid catching water. The snaplock closure clips to your Castelli top to keep it from riding up. On the run, the short basically disappears. The kiss tri seat pad is thin enough you don't really notice it. This short is so comfortable you'll be using it for training rides as well as racing. - Instadry speed fabric is fast in the swim with minimal water absorption - Free construction for great anatomic fit - Kiss tri seat pad is comfortable on the bike and virtually disappears on the run - Snaplock fastener at waist to clip jersey into place for swim and bike - Flat-lock stitching - GIRO4 leg gripper elastic for more comfort - Longer length for improved aerodynamics