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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.

Endura BaaBaa Merino Long Sleeve Baselayer
$69.99
Long sleeve baselayer in naturally insulating, machine washable Merino Wool • Anatomic cycle-specific fit • Mercerised for silky, itch-free comfort • Naturally odor resistant • High warmth to weight ratio even when wet • All seams flatlocked for comfort • Easycare machine wash • Packaged in carton • Construction: Wool 100%
Bontrager Sport Cycleliner
$27.99 $39.99 30% Savings
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.
Louis Garneau Supra Sleeveless
$24.99
For those days where the weather seems comfortable enough to wear just a jersey, it can be handy to have a thin extra layer to keep warm and dry if the weather becomes unstable. The Supra Sleeveless is so light you won't even know you're wearing it. - Supra Filo 2: Great moisture management - Flatlock seams Reflective accent - Racer Fit Extra Lightweight
Bontrager B3 Long Sleeve Baselayer - Women's
$39.99 $99.99 60% Savings
Bontrager's B3 Long Sleeve Baselayer is a midweight undershirt for cool to cold conditions. The thermal knit material retains warmth, breathes well and facilitates moisture transfer better than a jersey alone. And, the close fit and smooth exterior give you perfect layering without bulk.
Bontrager Trosla Women's Cycling Liner Short
$69.99
When you need a cycling liner with smart integrated storage options and a best-in-class chamois, upgrade to the Trosla Women's liner short. Dual hip pockets easily hold a variety of essentials, while comfortable mesh ventilation and supportive compression materials fight fatigue to make this the ultimate mountain-bike specific liner. Key features - Trosla Women's inForm BioDynamic Chamois - comfortable and dimension-optimized - Profila Power main materials with strategically placed Profila Cool inserts - Storage pockets on legs for nutrition wrappers or lip balm - Clean cut compression leg gripper - Flexible fit waistband for superior comfort - 8" (20cm) inseam - Fitted cut provides streamlined body fit for enhanced performance
Bontrager B1 Sleeveless Women's Baselayer
$34.99
Even warmer rides can benefit from the right baselayer. Bontrager's lightest weight baselayer fabric, B1, is a comfortable first layer of Profila Cool fabric enhanced with 37.5 technology that regulates the body’s relative humidity to maintain ideal core temperature, allowing greater on-bike performance. Comfortably fits under every jersey you own. Key features: - Profila Cool fabric powered by 37.5 active particle technology - Conditions-appropriate, tuckable length - Drop tail for a precise on-bike fit - Fitted cut provides streamlined body fit for enhanced performance
Craft Active Windstopper Gunde Boxer Short
$40.00
Craft's Active Windstopper Boxer Shorts are the ultimate base layer for cold and windy conditions. They feature a 4-way stretch fabric panel to keep you warm and dry. - Gore Wind Stop Piuma Panel - Pro Zero Fabric - Chafe-free waistband - Flatlock stitching - Excellent moisture transfer - Machine washable and dryable
Louis Garneau SF-2 LS Plastron
$54.99
Garneau's SF-2 LS Plastron is more than just a season-lengthening base layer, it's technical armor against the cold. This long sleeve's front is constructed with Garneau's Light WindDry 2 fabric, which blocks wind and is water-resistant. And, the back is crafted from light, soft Supra Filo 2 fabric, that uses honeycomb construction for exceptional moisture transfer and breathability so you stay dry and comfortable on every ride.
Louis Garneau Singlet 1001
$39.99
Garneau's Singlet 1001 makes you feel like a pro. This extremely light, efficient layer is worn directly against the skin, under your jersey, for moisture management. Cut from Garneau's polyester/spandex Drytex 1001 fabric traps a layer of air for reduced clinging, a breezy feel in steamy conditions, and added insulation when it's chilly. Plus, the stretchy nature of the weave allows ease of movement that's perfect for every activity.
Louis Garneau 3002 Tee
$49.99
Garneau's 3002 Tee is the layer you want to start with when the cold temperatures roll in. This mid-weight base layer is made of Drytex 3002, a stretch knit fabric that maintains body heat and offers moisture control. A permanent treatment makes this tee antibacterial and anti-odor, so it will last through your toughest workouts. Reflective accents enhance your visibility in low-light conditions.
Craft Active Crew Neck LS Base Layer
$60.00
The Active Crew Neck Base Layer by Craft keeps your body dry and comfortable during rides in cool to cold conditions. Its Pro Zero fabric provides a seamless, high stretch, nonrestrictive fit. Plus, the extended back is perfect for protecting your backside when you're pedaling. • Circular knitting process allows for a seamless torso and a high stretch, nonrestrictive fit • Internal air channels allow body heat to escape • Textured filament yarns
Craft Bike Bra - Women's
$49.99
With its cycling-specific cut for freedom of movement, lightweight fabric for ventilation, and mesh edging, Craft's Bike Bra provides the comfort you need on all your rides. - Body-mapped - Super light fabric - Ergonomic mesh edging - Cycling-specific shoulder straps - Folded lining for optimal moisture transfer
Craft Active Long Underpants
$59.99 - $60.00
Craft's Active Long Underpants are a soft, ventilating base layer with great moisture transport. - Keeps legs dry and comfortable during exercise in cool to cold conditions - Excellent moisture transport - Flatlock stitched - Soft seams are on outside of garment - Perfect fit
Pearl Izumi Women's Transfer Wool Long Sleeve Cycling Baselayer
$90.00
This is the best piece to have next to your skin as part of a layering system for riding in cool and 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 - Patent Pending anatomic Speed Sleeve construction for best shoulder fit in the cycling position - Cycling specific, close-to-body, anatomic fit - Four season versatility - Front: 86% Merino wool 14% nylon - Weight: 150 g/m2 - Back: 62% polyester 38% Merino wool - Weight: 130 g/m2 - Imported
Louis Garneau Women's 2002 Sport Inner Cycling Shorts
$39.99
With Nano-Silver Technology, these innershorts offer antibacterial, antiodor and fast-drying properties and help control body temperature. FABRICS: -Drytex® 2002: Thermoregulation DETAILS: -Elastic at waist -Side braids: Allow adjustable positioning with MTB shorts -Inseam: 8"/20.5 cm -Powerband: Compressive cuff that reduces lower leg pressure and provides support without restricting circulation -Permanent NANO-SILVER technology: Antibacterial and antiodor properties INFO +: -AirSport Chamois - Women
Fox Racing Evolution Pro Bib Liners
$149.95
The completely redesigned Attack Pro Trail System is all-mountain apparel at it's finest. The four part system creates the ultimate in trail comfort and performance to help you ride longer, stronger, and better. Premium Italian fabrics wick moisture to keep you cool and dry, and make a super-light silhouette perfect for all day riding. Tweaks like a built-in Fly-Flap for "taking care of business" on the go, and a storage pocket designed for use with Fox's pocket case make these bib liners the perfect addition to your mountain biking arsenal. Design & Function: - Premium Italian Polyester stretch mesh fabric - Reflective media loop - Mesh pockets for storage - Fly flap with internal opening - Built with Evo Chamois
Louis Garneau Women's 1001 Singlet
$39.99
The women's Singlet 1001 is the piece you won't want to do without, an ideal tool for managing your body temperature. This lightweight base layer acts as a transitory layer between the skin and the cycling jersey. It evacuates moisture even on the warmest days, so you can wear it at all times as a first layer to stay dry, no matter your sport or activity. - Drytex 1001: Enhances airflow and wicks moisture - Flatlock seams - Reflective accent - Racer Fit Extra Lightweight
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.
Club Ride Jewel - Women's
$34.95
A little comfort goes a long way with Club Ride's Jewel sport briefs. A minimalist Quicky chamois provides padding for short rides and commutes. And, its soft waistband keeps the breathable, performance fabric in place.
Cannondale Women's Liner Shorts
$30.00
Cannondale's Liner Shorts are perfect for turning standard shorts into cycling shorts. They're made of a comfortable and breathable poly/spandex blend and they boast Cannondale's seamless Comfort chamois for ample padding and excellent comfort on the bike.
Endura Transrib Shortsleeve Baselayer
$44.99
CoolMax ribbed knit makes Endura's Transrib Shortsleeve Baselayer an insulating layer in the winter, while its superior moisture management keeps you cool come summertime. Regardless of when you ride, the antibacterial finish on this baselayer will keep you feeling fresh. And, this snug, high-stretch top fits seamlessly beneath any jersey.
Endura Clickfast 8-Panel Coolmax Liner Shorts
$54.99
Crafted from Coolmax for exceptional breathability, Endura's Clickfast 8-Panel Coolmax Liner Shorts offer supreme riding comfort. Mesh panels create optimal ventilation while flatlock seams increase durability and a jacquard waistband offers a soft touch. Plus, silicone hem grippers keep this liner in place. They're designed to work in tandem with Endura's Clickfast-ready bottoms (sold separately), but they feel great in any pair of shorts you wear while riding. And, they're available with a 400-Series gel pad for extra support.
Louis Garneau Women's 2002 Cycling Undies
$34.99
Whether on the road, trails, or in spin class, these versatile undies can be worn under your favorite garment for an instant cycling outfit. FABRICS: Drytex® 2002: Thermoregulation DETAILS: -Elastic at waist -Side braids: Allow adjustable positioning with MTB shorts -Flatlock seams: Enhanced comfort -Permanent NANO-SILVER technology: Antibacterial and antiodor properties INFO +: -Slim Flex Chamois - Women
Bontrager B1 Sleeveless Baselayer
$34.99
Even warmer rides can benefit from the right baselayer. Bontrager's lightest weight baselayer fabric, B1, is a comfortable first layer of Profila Cool fabric enhanced with 37.5 technology that regulates the body’s relative humidity to maintain ideal core temperature, allowing greater on-bike performance. Comfortably fits under every jersey you own. Key features: - Profila Cool fabric powered by 37.5 active particle technology - Conditions-appropriate, tuckable length - Drop tail for a precise on-bike fit - Fitted cut provides streamlined body fit for enhanced performance
Bontrager B2 Long Sleeve Baselayer
$84.99
Retain warmth and stay dry with the B2 Long Sleeve Baselayer. A blend of polyester and wool makes it a comfortable first layer for great rides in mild temperatures.
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 B1 Short Sleeve Baselayer
$39.99
Even warmer rides can benefit from the right baselayer. Bontrager's lightest weight baselayer fabric, B1, is a comfortable first layer of Profila Cool fabric enhanced with 37.5 technology that regulates the body’s relative humidity to maintain ideal core temperature, allowing greater on-bike performance. Comfortably fits under every jersey you own. Key features: - Profila Cool fabric powered by 37.5 active particle technology - Conditions-appropriate, tuckable length - Drop tail for a precise on-bike fit - 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
Craft Cool Mesh Super Light SL Base Layer
$49.99
Craft's Superlight Mesh top features big-hole design for superior ventilation and cooling. • Multi-channel, hollow, polyester filament fabric • Fibers channel moisture away from the body • Antimicrobial treatment to prevent fabric odor • Ergonomic fit
Louis Garneau 2002 Sport Innercycling Shorts
$39.99
With Nano-Silver technology, these innershorts offer antibacterial, antiodor and fast-drying properties and help control body temperature. FABRICS: -Drytex® 2002: Thermoregulation DETAILS: -Elastic at waist -Side braids: Allow adjustable positioning with MTB shorts -Inseam: 8"/20.5 cm -Powerband: Compressive cuff that reduces lower leg pressure and provides support without restricting circulation -Permanent NANO-SILVER technology: Antibacterial and antiodor properties INFO +: -AirSport Chamois
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