Extremely lightweight, highly breathable, run-vest-compatible tank for running.When you want to let it rip on trail runs, this technical tank pushes the pace with sweat-wicking superpowers. Designed specifically for fast and light high-output running with breathable mesh under the arms and on the back, the Norvan regulates your temp without extra bulk or distraction. Built to wear under a run vest, so there’s no pack chafe to slow you down. What's been updated: Updated with lighter-weight polyester jersey and mesh, new design lines, fitted fit to reduce bulk, and strategic knit placement for optimal breathability and coverage.