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> Bicycling Catalog > Clothing > Undergarments > Bontrager > B1 Sleeveless Baselayer
Bontrager B1 Sleeveless Baselayer
  • Color: White
  • Color: White


B1 Sleeveless Baselayer

Model # (14371)
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Bontrager B1 Sleeveless Baselayer

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

Features and Information



by PowerReviews
Option Barcode Manufacturer's Part Number Vendor Number Store SKU
White / X-Small 00601479536740 540453 TRK-540453 BAS41793117E
White / Small 00601479536757 540454 TRK-540454 BAS40526330E
White / Medium 00601479536764 540455 TRK-540455 BAS41755245E
White / Large 00601479536771 540456 TRK-540456 BAS40654560E
White / X-Large 00601479536788 540457 TRK-540457 BAS41334516E
White / XX-Large 00601479536795 540458 TRK-540458 BAS42373228E
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