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


B1 Sleeveless Women's Baselayer

Model # (14372)
Product Rating
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Bontrager B1 Sleeveless Women's 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



by PowerReviews
Option Barcode Manufacturer's Part Number Vendor Number
White / X-Small 601479536986 540510 TRK-540510
White / Small 601479536993 540511 TRK-540511
White / Medium 601479537006 540512 TRK-540512
White / Large 601479537013 540513 TRK-540513
White / X-Large 601479537020 540514 TRK-540514