After a few short warm-up exercises, you lace up your running shoes, put on your favorite running top, and you're ready to run faster - and maybe a little farther too. This mid-layer, made sustainably with recycled fibers, is specifically designed for training in cold weather, actively warming you while providing unrestricted freedom of movement. A half-length zipper allows you to individually regulate your body climate, effectively venting or insulating as needed.

The perfect mid-layer for quick winter runs or intense ascents.