The Alpha half-zip pullover for men is a technical layer designed to support outdoor enthusiasts in all their pursuits, from snowy trails to rocky climbs, ski slopes to forest runs. Equipped with Polartec® Alpha™ insulation, it delivers intelligent thermal regulation that adapts to your pace. Unlike traditional insulation, Alpha™ adjusts its breathability based on your level of exertion: it retains warmth when you're still and releases heat as soon as you move, while actively wicking away moisture. The result is consistent comfort without overheating. Its lightweight, lofty fibers and mesh cor