Arc'teryx Men's Beta SL Jacket Black X-Large Nylon Imported Arc'teryx Bottoms Size Chart Arc'teryx Tops Size Chart The waist length Beta SL is an excellent all-around GORE-TEX&#174; PacLite&#174; jacket that is ideal for hikers or those who require lightweight and packable storm protection. Micro-seam allowance (1.6 mm) reduces bulk and weight. DWR finish (Durable Water Repellent) helps bead water from fabric surface. Laminated high-strength hanger loop. Fully seam-sealed for waterproofness. Tiny GORE&#174; seam tape (13 mm). One-hand adjustable drawcords. Generous cut for easy layering. Anatomical shaping for fit and comfort. Gender specific patterning. Articulated elbows and patterning for unrestricted mobility. No-lift gusseted underarms. Helmet compatible Storm Hood&#8482; with adjustable drawcords and a laminated brim. Laminated c