DeFeet Und Shurt Sleeveless Base Layer

- Thin and form-fitting, the UnD Shurt allows cyclists to dial in their clothing for specific temperature ranges without adding much weight or bulk to their outfit
- Thermal properties that keeps you comfortable on cool descents, but doesn't overheat on climbs. Perfectly suited for temps from 40-80F
- Popular baselayer by world's top cyclists since 1997