Shorts/Bottoms

The Women's Expedition Bib Short was created to go the distance. We integrated low-profile cargo pockets on the thighs for easy access to smartphones and snacks, and the flexibility to wear the top of your choice without neglecting carrying capacity. This bib was designed by a woman to eliminate issues riders often have with bib shorts, so our drop tail feature makes it easy to answer nature's call quickly and discreetly. The plush and breathable Women's Elite Escape 1:1 Chamois is the perfect companion for long days in the saddle. FEATURES - Compressive ELITE Transfer fabric made with recycled content - Drop tail design takes the hassle out of nature brakes - Thigh cargo pockets provide additional storage options - Women's ELITE Escape 1:1 Chamois pad with floating top sheet design reduces friction for all-day comfort - Laser cut bib straps provide superior next to skin comfort - Silicone print holds cuffs in place and provides a smooth transition from the short to skin - 8" inseam in size medium FABRIC - Bottom Panel: 80% recycled nylon, 20% elastane Top Panel: 35% recycled polyester, 34% recycled nylon, 31% elastane Made in Vietnam

When your next ride is a big one, the Women's Expedition Short is the right choice. We took this short to the next level by integrating low-profile cargo pockets on the thighs for easy access to smartphones and snacks, and the flexibility to wear any top you prefer without worrying about carrying capacity. The wide waistband won't chafe or pinch, and it features another horizontal rear pocket also capable of holding a phone. Our plush and breathable Women's ELITE Escape 1:1 Chamois is the perfect companion for long days in the saddle. FEATURES - Compressive ELITE Transfer fabric made with recycled content - Thigh cargo pockets provide additional storage options - Wide waistband eliminates pinching and chafing - Women's ELITE Escape 1:1 Chamois pad with floating top sheet design reduces friction for all-day comfort - Silicone print holds cuffs in place and provides a smooth transition from the short to skin - BioViz reflective elements for low-light visibility - 8" inseam in size medium FABRIC - MAIN BODY: 80% RECYCLED NYLON, 20% ELASTANE Made in Vietnam

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

Whether it's cool weather or itchy bushes, this full-length pant is ready for the trail. We use 4-way stretch Cordura to make the pants tough enough for serious trail riding without restricting pedaling. A tapered leg keeps the fit slim, but still has room for knee pads. Two zippered Trail Access pockets keep necessities easily accessible. Finished with PI Dry permanent water-shedding technology. While perfect for cooler conditions, this pant can be comfortable into the 70s. We cut this pant specifically for women's proportions and added styling to match. - Lightweight 4-way stretch Cordura nylon fabric with PI DRY water-shedding technology - PI Dry technology for permanent water-shedding performance - Two zippered Trail Access side pockets shift contents to the back of your leg for pedaling comfort - External hook-and-loop waist adjustments provide a secure, sag-free fit with less bulk - Add a chamois liner of your choice to complete the package - Main Body: 68% CORDURA nylon, 21% polyester, 11% elastane - Other: 100% polyester - Reflectivity: Low-light visibility - Made in Vietnam

When you go by bike, sometimes you just need a bit of cushion without the bulk of a standard cycling short. The Minimal Liner Short uses a removable version of our slim, yet supportive Versa chamois that will fit under any outfit. The satin waistband and boy-short cut make it a great option to go with you on the trail, during spin classes, or on your daily commute. FEATURES - Transfer Mesh fabric made with 100% recycled content - Boy short cut - Women' Versa Chamois provides minimal padding and stay-dry comfort - Removable chamois pad - Satin waistband for soft next to skin feel FABRIC - Main Body: 80% recycled nylon, 20% elastane Side Panels: 47% recycled polyester, 42% polyester, 11% elastane, Made in Vietnam

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]

High-performance liner short We've outfitted the Women's SELECT Liner short with our high-quality Women's SELECT Escape 1:1 Chamois, so you will no longer have to decide between the comfort of a traditional bike short or the added breathability of a liner. The smooth mesh fabric used throughout the Liner short body helps the liner move smoothly under your shell layer for unrestricted pedaling. - Transfer fabric provides optimal moisture management - No leg gripper - Women's SELECT Escape 1:1 Chamois provides moisture transfer, quick dry time, and odor absorption - 8" inseam [size medium] - Main Body: 80% polyester 20% elastane - Side: 88% nylon 12% Lycra elastane - Garment Weight (Size M): 101g

This women’s liner has been outfitted with Pearl Izumi's high quality women’s SELECT Escape 1:1 Chamois, so you'll no longer have to decide between the comfort of traditional bike shorts or the added breathability of a liner. The smooth-face mesh fabric used throughout the shorts body helps the liner move smoothly under your shell layer for unrestricted pedaling. - Transfer fabric provides optimal moisture management - Women’s SELECT Escape 1:1 Chamois provides moisture transfer, quick dry time and odor absorption - Gripper free - 8” inseam (Size M) - Main Body: 80% polyester, 20% elastane - Side: 88% nylon, 12% LYCRA elastane - Garment Weight (Size M): 101 g

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

This is your perfect sporty warm-weather crop. We’ve selected a fabric with a softer hand and less sheen than a traditional bike short for a fresh look and feel. The wide waistband is cut high in back for coverage and the front is designed for less restriction and increased comfort. Strategically placed mesh panels simultaneously add style and ventilation for riding in hot environments, and a side pocket increases the usability without interfering with riding. - Soft, lightweight, and high-stretch SELECT Transfer fabric - Flattering wide waistband with encased elastic for superior comfort - Power mesh stretch pocket on right side for essentials, fits most phones; - Dim: 7” x 3.75” - Blended thickness Women’s SELECT Escape 1:1 Chamois for chafe-free comfort - BioViz reflective elements for low-light visibility - 22” inseam length (Size M) - Available in XXXL - Main Body: 78% polyester, 22% elastane - Mesh: 95% nylon, 5% elastane - Made in Vietnam

This cold-weather women's tight gives up nothing in performance while adding shoulder-season style. Featuring one of the softest materials we use, this thermal tight employs a wide waistband for comfort and two side pockets for a debit card, ID, or phone. Our breathable Women's SELECT Escape chamois provides on-the-bike comfort and performance. Large BioViz reflective prints appear on the calves as well as the hip and front-right. - Ultra-soft Thermal fleece fabric for pedaling comfort and thermal regulation - Made with recycled content - Two side pockets to stash accessories - Women's SELECT Escape 1:1 Chamois is smooth next to skin with blended, edge-free cushioning for maximum comfort - BioViz reflective elements for low-light visibility - Main Body: 61% recycled polyester, 33% polyester, 6% elastane Pocket: 95% nylon, 5% elastane - Type: Thermal - Reflectivity: Low-light visibility - Made in Vietnam

Our new 2022 custom road kits (men's and women's) to rep Full Cycle, Colorado Multisport, and The Tune Up (Boulder's Cycling Hub!) on your road cycling adventures wherever you are in the world! Select between Men's/Women's and Jersey/Bibs. Produced by BASE Performance.

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.

Podium proven performance built for durability.

The ultimate in speed and performance.

Technical performance that works on and off the bike.

Tough and durable mountain bike pants Wear the Women's Defend Pants on your next run and feel what it's like to shred in pants that have been tested on the world's toughest trails by our pro mountain bike athletes. The slim silhouette and tapered lower leg with mesh inset provides a race-ready fit to keep you cool and reduce snags and drag, while the proven race rachet closure keeps them snug while making fit easily adjustable on the fly. Tough as they come, they feature double-layer knee panels to increase durability, while the TruMotion all-way stretch main material ensures a high level of pedal efficiency, helping you ascend the toughest climbs so you can enjoy the descent. The Women's Defend Pants also feature extra storage, so you stay out longer on your all-day park adventure, while the DWR finish sheds moisture, dirt, and debris like a champ. - Cordura fabric at saddle provides higher resistance to abrasion - Double-layer knee panels for added durability - Proven race-ratchet closure provides secure fit and quick on-the-fly adjustments - Secure zip hand pockets for essential items - Tapered lower leg with stretch mesh inset reduces snag, drag and adds cooling - TruDri fabrics move sweat away from the body to keep you dry - TruMotion all-way stretch fabric offers full range of mobility - DWR finish sheds moisture, dirt, and debris - Body-mapped laser perforations on back panels increase airflow to keep you cool - 94% polyester, 6% elastane

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

Innovative evolution The Free Aero RC Bibshort is our top race short, which also means that it's insanely comfortable even if you never pin on a number. It's fair to say that we've been working on this short for the past 15 years. That's how long it's been since the original free aero race bibshort was first introduced, initially as our top-of-the-line race short. Since then it has won three Tours de France, three Gri d'Italia, one Vuelta, and San Remo, but it also became the best-selling product in the history of Castelli because, simply put, this is the short that does everything well. The concept is quite simple: start with the best pad we know how to make, surround it with a supportive short with good muscle compression, and then remove everything else that's not absolutely necessary. You feel free thanks to the reduced number of panels and the reduced number of seams. In fact, the short portion has just 5 panels compared to 10 in the previous generation. You feel free because of further refinements to the Progetto X2 air seamless seat pad. The two densities of foam plus the gel pads provide progressive damping, while the separate skincare layer is soft and stretchy to move with your skin. You feel free thanks to the most minimal bibs you've ever seen in a short, including open-weave straps for maximum airflow. But we reinforced the yoke so the straps stay in place and made the mesh back narrow for coverage that is minimal yet just enough to hold the shorts in place. And the bib elegantly frames a convenient pocket at the center back. You feel free because this is the first high-end short that doesn't need any sort of gripper or elastic at the end of the leg to keep the leg in place. Getting this right meant 28 prototypes and our most extensive test program ever, and it results in the most comfortable leg ending we've ever made. The Forza 2 fabric has 32% lycra with a high modulus for exceptional muscle support and just the right amount of compression. There's reflective piping on the back. And all logos are either stitched or embossed for durability. - High-compression 215g Forza 2 fabric with 32% lycra content provides exceptional muscle support and compression - Progetto X2 air seamless seat pad is soft against the skin but well padded for long-distance comfort - Minimalist bib straps allow maximum airflow, while a reinforced yoke keeps the straps flat over the shoulders - Rear mesh pocket - 5-panel construction for reduced seams and less chafing - Sublimation-printed graphic and logos that will never peel, crack, or fade - Reflective piping on back of legs - Soft waistband with raw-cut edge panels for extra stretch and comfort - Raw-cut leg ending engineered to stay put without silicone grippers

A Better Short Shorts are an obsession at Castelli. They're the most vital piece of clothing and one of the hardest to get right. Even though the Prima is our entry-level short, it shows that we won't compromise anything for comfort and performance. It starts with the women's-specific KISS Air2 seat pad. Just the name gives an idea of the process of constant improvement, which started with a soft KISS pad that was improved by making it more breathable (Air) and then improved again in the latest update to use the softest-ever top fabric (2). It's ready for your next big ride indoors or out. We've updated the fabric to the new Pro Dry Soft, which has a smooth matte finish that feels cool on the skin while being very supportive and quick to dry. We wanted this short to be just right for many years to come, so little details like the reflective patches are stitched in instead of being glued on, and the GIRO3 elastic has the grip woven right into the fabric. This attention to detail — go ahead and call it an obsession — is why Castelli's entry-level short is just a better short. - KISS Air2 seat pad for all-day comfort - Pro Dry Soft matte Lycra is sleek looking and ultra-breathable - Anatomic construction for perfect fit - Rear reflective panels - GIRO3 engineered flat leg band - 15°-35°C / 59°-95°F - Weight: 160g

A triathlon short for all three disciplines and all distances. Take it to the start line of your season highlight or your after-work training session.^Clips to the Castelli Free race top (short sleeve or sleeveless) for all the advantages of a one-piece suit. - The do-everything triathlon short for training and racing - 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 - Pocket at center back - Raw-cut leg ending with internal silicone grip elements

You've found the best deal riding. Terry has extended the length of their exceedingly popular Actif Short to a high calf length knicker, making it a wonderful alternative for all-season cycling. And although it's a heck of a deal, the Actif cuts no corners on comfort and provides you with an excellent fit, seamless Comfort chamois and a host of features. Comfort Chamois: Soft, hygienic, stretch chamois with anatomical shaping for comfort; seamless, mono density foam with naturally antibacterial cover fabric. Made in Italy. - 6 Panels - 2" Elastic-Free Waistband - Flat-seam Construction - 2" Elastic-Free Leg Bands - Seamless Constructed Comfort Chamois   - Soft Nylon/Spandex - Breathable - Antimicrobial - Moisture Wicking

The Actif Short is the best fitting, best equipped, best value in a woman's bike short under $60 – Bicycling magazine has named it a 'Value of the Month'. Although the price may be low, the Actif cuts no corners on comfort and provides you with an excellent fit, seamless Comfort chamois and a host of features. Comfort Chamois: Soft, hygienic, stretch chamois with anatomical shaping for comfort; seamless, mono density foam with naturally antibacterial cover fabric. Made in Italy. - 6 Panels - 2" Elastic-Free Waistband - Flat-seam Construction - 2" Elastic-Free Leg Bands - Seamless Constructed Comfort Chamois   - Soft Nylon/Spandex - Breathable - Antimicrobial - Moisture Wicking