SIZING NOTE:  THESE RUN SMALL! SO IF YOU'RE NORMALLY A SMALL YOU'D BE MEDIUM IN THIS.  A men’s lightweight midlayer for alpine trekking activities. When you want an extra layer of thermal comfort for hiking and trekking in the mountains, pack a Puez Hybrid PL Full Zip fleece. Made of Polarlite, SALEWA’s proprietary fleece with a soft, warm waffle reverse side that traps heat and packs down small. The ergonomically shaped gusseted sleeves and comfortable flat lock seams offer good freedom of movement and the athletic fit layers nicely under a shell. FEATURES: Soft inner collar for increased comfort Slit with Zip 2 zipped outer pockets Lightweight, elastic bindings on cuffs and hem Comfortable fit through flat lock seams Special sleeve design (gusset) for good freedom of movement