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Undergarments

Control your climate with Bontrager baselayers.

Available in multiple fabric weights, each with its own unique construction, and each designed for moisture-wicking, quick-drying, and 4-way stretch mobility, Bontrager baselayers provide the specific thermal performance you need to stay comfortable, no matter how intense your ride or varied the conditions.

Bontrager Sport Cycleliner
$27.99 $39.99 30% Off
Bontrager's Sport Cycleliner turns any shorts into cycling shorts. These fitted liners use highly breathable microfiber with a multi-panel design for serious comfort. Speaking of comfort, you also get Bontrager's inForm chamois padding for support and protection, leg grippers to keep these liners in place and a chafe-free waistband.
Craft Craft Active Extreme 2.0 CN LS
$79.99
- Thin, lightweight and elastic fabric that is channel-knitted to trap air and provide warmth - Body-mapped mesh for optimal temperature regulation - Flatlock seams that follow body movements - Fabric 1: 100% Polyester - Fabric 2: 96%, 4% Elastane
Craft Active Extreme 2.0 Boxer WS
$64.99
These boxers feature elastic Windstopper panels and excellent body-temperature management. - Fabric 1: 100% Polyester - Fabric 2: 92% Polyester, 8% ePTFE
Craft Active Extreme 2.0 CN SS
$74.99
- Thin, lightweight and elastic fabric that is channel-knitted to trap air and provide warmth - Coolmax-Air fiber against the skin enhances cooling and moisture transport - Body mapped mesh for optimal temperature regulation - Flatlock seams that follow body movements - Fabric 1: 100% Polyester - Fabric 2: 96% Polyester, 4% Elastane
Craft Craft Cool Mesh Superlight SL
$49.99
- Women's specific design of Craft's Superlight mesh top with big-hole design for superior ventilation/cooling - Designed to keep you cool while exercising - Lightweight, micro polyester mesh fabric with a multi-channel fiber construction that effectively pulls perspiration vapor off the body to keep you cool
Craft Active Extreme 2.0 CN SS
$74.99
- Thin, lightweight and elastic fabric that is channel-knitted to trap air and provide warmth - Coolmax-Air fiber against the skin enhances cooling and moisture transport - Body-mapped mesh for optimal temperature regulation - Flatlock seams that follow body movements - Fabric 1: 100% Polyester - Fabric 2: 96%, 4% Elastane
Craft Active WS Crewneck LS
$89.99
- Full wind-protection in front - Protects your body in windy conditions - Lightweight Gore Windstopper fabric - Soft and close fit - Fabric: 100% Polyester
Club Ride Johnson Innerwear
$34.95
Heading out for a hot lap on your lunch break? The Johnson is a minimalist chamois with soft four-way stretch fabric comfortable enough to wear all day. Club Ride has changed the game redesigning our Innerwear with soft, light, quick-drying, four-way stretch knit fabric. - ActiveFlow Quick Drying, Breathable 4-way Stretch Fabric - Fabric Content: 44% Nylon/44% Polyester/12% Spandex - Fabric Weight: 160 g/m² - 6-Panel Body Shaping Construction - Wide Waist Band for Comfort and Lasting Fit - Boxer Brief Fit/6.5” Inseam - 3mm Single Density Light Protection Chamois - 1-Hour Ride Time: Chamois comfort is very specific to each person. We classify the Johnson as a comfortable liner for up to a 1-Hour ride in the saddle
Club Ride Gunslinger Innerwear
$44.95
Looking for a chamois for most rides? The Gunslinger handles mid to short rides with ease. This mid-length innerwear is less noticeable on and off the bike while still offering comfort to stay in the saddle. Club Ride has changed the game redesigning our Innerwear with soft, light, quick-drying, four-way stretch knit fabric. - ActiveFlow Quick Drying, Breathable 4-way Stretch Fabric - Fabric Content: 44% Nylon/44% Polyester/12% Spandex - Fabric Weight: 160 g/m² - 5-Panel Body Shaping Construction - Wide Waistband for Comfort and Lasting Fit - Mid-Length Fit/8” Inseam - Anatomically Male Specific Pre-Shaped Chamois - 8mm Dual Density Foam Chamois For Mid-Length Rides - 2-Hour Ride Time: Chamois comfort is very specific to each person. We classify the Gunslinger as a comfortable liner for up to a 2-Hour ride in the saddle.
Pearl Izumi Women's Transfer Sleeveless Base Layer
$45.00
This women’s specific summer weight cycling baselayer is designed to keep you cool and comfortable even on hot days. P.R.O. Transfer fabric facilitates the evaporative process by rapidly moving moisture away from your skin to outer layers. In back, mesh panels maximize ventilation. Wear this sleeveless baselayer under a short sleeve jersey during the heat of summer, and then add it to your cool weather layering system during chillier months. - P.R.O. Transfer Dry fabric provides optimal moisture transfer for quick dry performance - Cycling specific, close to body, anatomic fit - Soft merrow seams for next to body comfort - Front Panel: 100% polyester - Back Panel: 100% polyester - Garment Weight (Size M): 64 g
Pearl Izumi Women's Transfer Short Sleeve Base Layer
$50.00
This women’s specific summer weight cycling baselayer is designed to keep you cool and comfortable even on hot days. Transfer fabric facilitates the evaporative process by rapidly moving moisture away from your skin to outer layers. In back, mesh panels maximize ventilation. Patented Speed Sleeve anatomic construction hugs the contours of your shoulders, providing a second-skin fit when in the bent-over riding positing. Wear this short sleeve baselayer under a short sleeve jersey during the heat of summer, and then add it to your cool weather layering system during chillier months. - P.R.O. Transfer Dry fabric provides optimal moisture transfer for quick dry performance - Patented anatomic Speed Sleeve construction for best shoulder fit in the cycling position - Cycling specific, close to body, anatomic fit - Soft merrow seams for next to body comfort - Front Panel: 100% polyester  - Back Panel: 100% polyester - Stretch Panel on shoulders: 80% polyester, 20% elastane  - Garment Weight (Size M): 81 g
Club Ride Montcham Innerwear
$54.95
Not sure what trail you'll end up on or how long you'll be in the saddle? The MontCham is a rider's go-to liner built to keep a rider comfortable on and off the bike for the widest array of rides. Club Ride has changed the game redesigning our Innerwear with soft, light, quick-drying, four-way stretch knit. - ActiveFlow Quick Drying, Breathable 4-Way Stretch Fabric - Fabric Content: 80% Nylon/12% Polyester/8% Spandex - Fabric Weight: 200 g/m² - 4-Panel Body Shaping Construction - Wide Waistband for Comfort and Lasting Fit - Mid-Length/8” Inseam - Anatomically Female Specific Pre-Shaped Chamois - 8mm Dual Density with Gel Insert for Vibration Dampening - Perforated Memory Foam for Increased Ventilation and Elasticity - 3-Hour Ride Time: Chamois comfort is very specific to each person. We classify the Montcham as a comfortable liner for up to a 3-Hour ride in the saddle
Club Ride June Innerwear
$34.95
Heading out for a quick lap on your lunch break? The June is a minimalist chamois with soft four-way stretch fabric comfortable enough to wear all day. Club Ride has changed the game redesigning our Innerwear with soft, light, quick-drying, four-way stretch knit fabric. - ActiveFlow Quick Drying, Breathable 4-Way Stretch Fabric - Fabric Content: 44% Nylon/44% Polyester/12% Spandex - Fabric Weight: 160 g/m² - 5-Panel Body Shaping Construction - Wide Waistband for Comfort and Lasting Fit - Boy Cut Brief/ 3” Inseam - Anatomically Female Specific Pre-Shaped Chamois - 3mm Single Density Light Protection Chamois - 1-Hour Ride Time: Chamois comfort is very specific to each person. We classify the June as a comfortable liner for up to a 1-Hour ride in the saddle
Craft Cool Mesh Superlight SL
$49.99
- Superlight Mesh top with big-hole design for superior ventilation/cooling. - Mesh with big-hole construction for super ventilation and cooling - Ergonomic fit for optimal freedom of movement - Excellent moisture transport - Soft and comfortable fit - Full lightweight mesh Fabric: 95% Polyester / 5% Elastane
Gore Wear Base Layer Singlet
$39.99
Gore's Base Layers are made of a light moisture-transferring fabric with non-chafing flatlock seams and an anatomic cut for excellent comfort and freedom of movement.
Gore Wear Base Layer Windstopper Lady Shirt
$75.99
Gore's Base Layers are made of a light moisture-transferring fabric with non-chafing flatlock seams and an anatomic cut for excellent comfort and freedom of movement. The WS boasts Gore's Windstopper panels for additional weather protection. • Elastic WINDSTOPPER insert on front, over shoulders and on kidney area • Thin and soft fabric • Minimized seams for less chafing • Flat-lock seams • Extra-long back • Reflective logo on front • 128 gr (Size 38) • MAIN FABRIC: 100% Polyester with a WINDSTOPPER Membrane • STRETCH: 88% Polypropylene, 8% Elastane, 4% Polyamide
Craft Active Extreme 2.0 CN LS WS
$129.99
- Jersey with elastic Windstopper panels and excellent body-temperature management - Fabric 1: 100% Polyester - Fabric 2: 92% Polyester, 8% ePTFE
KETL Liner Short
$100.00
As the seasons change and the mercury starts to boil, we tend to take a different approach to our attire on the bike. Less is more. Lighter, more breathable fabrics are a must. Moisture management is key. A good liner short is crucial. Ours is crafted using lightweight, breathable Italian fabric and is designed to be worn under an overshort. It offers just the right amount of compression without being too constricting and features a soft, comfortable waistband that moves with you. -Lightweight, breathable, compressive Italian fabric -Soft and comfortable flat rear waistband -Multi-density EIT mountain-bike-specific chamois -Wide, comfortable leg bands that grip without pinching -Sizes XS–XL
Pearl Izumi Women's Transfer Wool Short Sleeve Base Layer
$80.00
Pearl's Transfer Wool Short Sleeve Base Layer is the best piece to have next to your skin as part of a layering system for riding in damp or wet conditions. This baselayer combines high quality Merino wool and moisture-wicking polyester in a strategic blend for exceptional performance. Its cycling specific shape, thumb loops if you need to seal in the warmth, and soft merrow seams create a comfortable foundation for cold weather and changing conditions. • P.R.O. Transfer Dry Merino provides optimal moisture transfer, dry time and odor absorption • Cycling specific fit with rotated sleeve construction • All–season versatility • Anatomic ‘close–to–body’ fit
Pearl Izumi Women's Cargo Baselayer
$60.00
A full mesh baselayer designed to carry ride essentials under a jersey, with Pearl's patented anatomic Speed Sleeve construction to deliver a cycling-specific fit and support your load comfortably through your shoulders. - Direct-Vent mesh fabric for optimal moisture transfer and cooling - Patented anatomic Speed Sleeve design provides anatomically contoured fit in the cycling position, plus spreads the weight of pocket cargo across your shoulders - Three back pockets allow close-to-body storage without bouncing
Pearl Izumi Men's Transfer Short Sleeve Base Layer
$50.00
The perfect piece to wear against your skin as part of a layering system to keep you comfortable on both warm and cold days. Fabric rapidly moves moisture away from your skin to outer layers to keep you dry while open mesh panels in the back maximize next-to-skin ventilation. - Transfer Dry fabric provides optimal moisture transfer for quick dry performance - Patented Speed Sleeve construction for a contoured, cycling specific fit - Soft merrow seams for next-to-body comfort - Body: 100% polyester  - Stretch Panel on Shoulders: 80% polyester, 20% elastane - Garment Weight (Size M): 81g
Pearl Izumi Men's Transfer Sleeveless Base Layer
$45.00
This cycling specific summer weight baselayer is designed to keep you cool and comfortable even on hot days. P.R.O. Transfer mesh fabric facilitates the evaporative process by rapidly moving moisture away from your skin to outer layers. In back, more open mesh panels maximize ventilation. Wear this baselayer under a short sleeve jersey during the heat of summer, and then add it to your cool weather layering system in spring or fall. - P.R.O. Transfer mesh fabric provides optimal moisture transfer for quick dry performance - Cycling specific, close to body, anatomic fit - Soft merrow seams for next to body comfort - Body: 100% polyester   - Garment Weight (Size M): 65g
Pearl Izumi Men's Cargo Bib Liner Shorts
$100.00
Many experienced riders have opted for the comfort of road bibs under shell shorts for years. They prefer the feel of a bib, but road shorts are not made to be covered with a durable shell short, and the combination can be warmer than ideal. Enter Pearl Izumi's Cargo Bib Liner Short, which not only improves ventilation versus traditional road shorts, but also adds integrated storage with three rear jersey-type pockets and two lower pockets on the thigh for trail essentials, like water, tools, and spare tubes. The superior ELITE Escape 1:1 Chamois takes saddle comfort to a whole new level. With this ultimate bib liner you can ditch your hydration pack for all but your longest rides. Features: - New Transfer Mesh body fabric provides an amazing next-to-skin feel - Smooth fabric across the front of the legs slides easily under shell shorts and ensures a friction-free pedaling experience - Optimized with superior ELITE Escape 1:1 Chamois - Three pockets on the lower back of the bib, and two thigh pockets for carrying ride essentials - 10” inseam
Pearl Izumi Men's Cargo Liner Shorts
$70.00
Engineered to deliver friction free pedaling, performance, and phenomenal breathability, the Pearl Izumi Men's Cargo Liner Shorts are a must have for serious trail riders. Smooth fabric on the front of the thighs allows the liner to slide easily beneath your shell shorts and the Transfer Mesh main body delivers unbelievable breathability. Thigh pockets near the leg openings can conveniently stash your food, ID, money, or tools. And they are easy to access by flipping up the bottom of your shell short. The superior ELITE Escape 1:1 Chamois takes your saddle comfort to a whole new level. Features: - New Transfer Mesh body fabric provides an amazing next-to-skin feel - Smooth fabric across the front of the legs slides easily under shell shorts and ensures a friction-free pedaling experience - Optimized with the superior ELITE Escape 1:1 Chamois - Two thigh pockets for carrying ride essentials - 10” inseam
Pearl Izumi Men's Transfer Long Sleeve Baselayer
$65.00
This cycling-specific summer-weight baselayer is designed to keep you cool and comfortable even on hot days. Transfer fabric facilitates the evaporation process by rapidly moving moisture away from your skin to outer layers, while activated charcoal in the front panel fabric further speeds dry time and cooling. In back, mesh panels maximize ventilation. Speed Sleeve anatomic construction hugs the contours of your shoulders, providing a second-skin fit when in the bent-over riding position. Wear this baselayer under a short sleeve jersey during the heat of summer, and then add it to your cool weather layering system during chillier months. - Transfer Dry fabric provides optimal moisture transfer for quick dry performance - Anatomic Speed Sleeve construction for best shoulder fit in the cycling position - Cycling specific, close to the body - Activated Charcoal integrated into the yarns used in front panels to speed dry time even more - Soft Merrow seams for next to body comfort
Pearl Izumi Women's Versa Liner
$40.00
This boy-short style brief has a minimal chamois to keep you comfortable on the bike without being bulky, so you can seamlessly transition into your day. Super breathable, super comfortable and all the antimicrobial and wicking properties you need, in a piece that makes riding in your favorite shorts and dresses something that won’t be a hassle. - Transfer mesh fabric provides optimal moisture management - Women’s Versa Chamois provides moisture transfer, quick dry time and odor absorption - Gripper free - 2.25" inseam (Size M) - Main Body: 80% polyester, 20% elastane - Side: 88% nylon, 12% LYCRA elastane - Garment weight (Size M): 69g
Pearl Izumi Women's Transfer Long Sleeve Baselayer
$65.00
This women's-specific cycling baselayer is designed to keep you warm and comfortable on cool to cold days. Transfer fabric rapidly moves moisture away from your skin to the outer layer, while activated charcoal in the front panel fabric further speeds dry time and moisture transport. Speed Sleeve anatomic construction hugs the contours of your shoulders, providing a second-skin fit when in the bent-over riding position. Wear this baselayer under a long sleeve jersey during cooler months, and then add it to your cold weather layering system during chillier months. - Transfer Dry fabric provides optimal moisture transfer for quick dry performance - Anatomic Speed Sleeve construction for best shoulder fit in the cycling position - Cycling specific, close to body, anatomic fit - Activated Charcoal integrated into the yarns used in front panels to speed dry time even more - Soft Merrow seams for next to body comfort
Bontrager Mesh Short Sleeve Cycling Baselayer
$44.99
Control your climate Bontrager's Mesh Short Sleeve Baselayer keeps you cool and dry when temperatures rise. It's made of ultra-lightweight fabrics enhanced with 37.5 active particle technology to keep your body at an ideal core temperature on even your hottest and longest rides. Product details - Profila Dry fabric and 37.5 active particle technology offer moisture and temperature regulation - Ultra-light, moisture-wicking material made from polyester and Profila Cool - Natural materials eliminate odor molecules and never wash out - Longer body length and drop tail tucks into shorts or bibs to prevent overexposure - Locker loop on collar makes baselayer easy to hang for quicker drying after rides - Fitted cut provides a streamlined body fit for enhanced performance
Bontrager Troslo inForm Cycling Liner Short
$69.99
The Troslo inForm short is unlike any cycling liner short you’ve seen before. Dual hip pockets easily hold a variety of essentials, while comfortable mesh ventilation and supportive compression materials fight fatigue to make this the ultimate liner to go under your shorts and prevent chaffing. Key features - Troslo inForm BioDynamic Chamois - comfortable, dimension-optimized cycling pad - Two pockets on legs for nutrition wrappers or lip balm - Profila Power main materials with strategically placed Profila Cool inserts - Clean cut compression leg gripper - Flexible fit waistband for superior comfort - 9.5" (24cm) inseam - Fitted cut provides streamlined body fit for enhanced performance
Bontrager Troslo inForm Cycling Liner Bib Short
$79.99
The Troslo inForm bib short is unlike any cycling liner you’ve seen before. Dual hip pockets hold a variety of essentials, while comfortable mesh ventilation and supportive compression materials fight fatigue to make this the ultimate liner to go under your shorts and prevent chaffing. Key features - Troslo inForm BioDynamic Chamois - comfortable, dimension-optimized cycling pad - Three back pockets on bib and two pockets on legs for nutrition wrappers or lip balm - Profila Power main materials with strategically placed Profila Cool inserts - Clean cut compression leg gripper - Bib straps for ultimate non-restrictive comfort - 9.5" (24cm) inseam - Fitted cut provides streamlined body fit for enhanced performance
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