Stay cool and dry with the B1 Short Sleeve Baselayer. Made with Bontrager's lightest weight baselayer fabric, it’s a comfortable first layer for great rides in warm temperatures. - 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

Stay cool and dry with the B1 Sleeveless Baselayer. Made with Bontrager's lightest weight baselayer fabric, it's a great first layer for rides in warm temperatures.