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Cycling Baselayers

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 WSD - Women's
$21.99 - $39.99 $39.99 Up To 45% Savings
Bontrager's Sport Cycleliner WSD 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.
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 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 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
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
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
Gore Wear Base Layer Windstopper Lady Shirt
$69.99
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
Bontrager Solaris Women's Shorts
$49.99
- Cirra inForm BioDynamic Chamois - women's dimension-optimized cycling pad - Profila Power compressive technology fights muscle fatigue - Clean cut compression leg gripper - Reflective elements enhance visibility for maximum safety anytime - 9" (23cm) inseam - Fitted - Streamlined fit for all-around cycling performance
Bontrager B3 Long Sleeve Baselayer
$59.99 - $69.99 $99.99 Up To 30% 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 Cirra Women's Liner
$19.99 - $49.99 $49.99 Up To 60% Savings
• Cirra inForm BioDynamic Chamois - women's dimension-optimized cycling pad • Highly breathable microfiber material for excellent moisture wicking • Rubberized leg gripper • Flexible fit waistband • 7" (18cm) inseam • Fitted - Streamlined fit for all-around cycling performance
Bontrager Trek Segafredo Sleeveless Baselayer
$49.99
- Profila Cool fabric powered by 37.5 technology provides exceptional moisture transfer - Conditions-appropriate tuckable length - Drop tail for a precise on-bike fit - Fitted: Streamlined fit for all-around cycling 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 B2 Short Sleeve Baselayer
$69.99
Retain warmth and stay dry with the B2 Short Sleeve Baselayer. A blend of polyester and wool makes it a comfortable first layer for great rides in mild temperatures. • Profila Dry powered by 37.5 technology and Merino Wool on back and arms provides a great balance between moisture transfer and warm when wet in mild, variable conditions • Conditions-appropriate tuckable length • 3" (8cm) drop tail for a precise on-bike fit • Fitted - Streamlined fit for all-around cycling performance
Bontrager B2 Long Sleeve Baselayer - Women's
$84.99
Stay warm and dry with Bontrager's B2 Long Sleeve baselayer. The polyester and wool blend creates an ideal first layer for those cool autumn rides. • Profila Dry powered by 37.5 technology and Merino Wool on back and arms provides a great balance between moisture transfer and warmth when wet in mild, variable conditions • Conditions-appropriate tuckable length • 3-inch (8cm) drop tail for a precise on-bike fit • Fitted: Streamlined fit for all-around cycling performance
Bontrager B1 Sleeveless Women's Baselayer
$13.99 - $34.99 $34.99 Up To 60% Savings
Stay cool and dry with the B1 Sleeveless Women's Baselayer. Made with Bontrager's lightest weight baselayer fabric, it's a great first layer for rides in warm temperatures.
Bontrager B3 Long Sleeve Baselayer - Women's
$79.99 - $99.99 $99.99 Up To 20% 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.
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