Description of Arcteryx Alpha LT Jacket A fusion of light and tough, the pared-down Alpha LT measures up for fast-focused alpinism. A tough Vislon WaterTight front zip and 3-layer GORE-TEX® XCR® add strength and enhance performance without extra bulk. Features: Helmet compatible Storm Hood Hip length, drop back hem Laminated die-cut Velcro® cuffs Laminated hem drawcord Laminated quick-dry chin guard Micro seam allowances (1/16 in./1.6 mm) Moulded Zipper Garages No-lift gusseted underarms with laminated pit zips One hand pull cords Reinforced shoulders and elbows Tiny Gore® seam tape (1/2 in./13 mm) Two chest pockets with laminated zips One internal chest pocket WaterTight pit and pocket zips WaterTight Vislon front zip 390NR 3-layer GORE-TEX® XCR® 530N 3-layer GORE-TEX® XCR® Weight: 495g