You focus on your planned split times, lace up your running shoes, pull on your favorite running top, and get ready to run faster – and perhaps a little further. This mid-layer, made sustainably from recycled fibers, is specifically designed for training in cold weather, providing active warmth and unrestricted freedom of movement. A half-length zipper allows you to individually regulate your body climate, effectively ventilating or insulating as needed. The perfect mid-layer for quick winter runs or intense ascents.