Description of Arcteryx Alpha SL Jacket Lightweight and waterproof the Arcteryx SL jacket is scaled down from the LT to bring you a jacket more agile than a full grown bobcat. Embrace the backcountry downpour as you watch the rain bead off the Alpha SL’s two-layer Gore-Tex shell fully taped with Gore-Seam tape. Ideal for alpine/ice climbing, snowshoeing, and trekking the Arcteryx Alpha SL is a must for those with a serious addiction to the outdoor lifestyle. Lightweight and waterproof jacket with essential backcountry features. Features: Hip length Two laminated hand pockets Helmet compatible Speed Hood™ Laminated WaterTight™ front, pit, and pocket zippers Micro seam allowances (1.6mm/ 1/16”) No-lift gusseted underarms Laminated chin guard Laminated die-cut Velcro® cuffs Laminated hem with drawcord One hand pull cords 340NR 2-layer GORE-TEX® PACLITE® Weight: 342g