Bontrager B3 Long Sleeve Baselayer, 1/4-Zip

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. It features a 1/4-length zipper for easy temperature regulation.