Finetuned for climbing, the Arc'teryx Alpha FL 30 Backpack offers streamlined durability that’s fit for your next expedition. Made from 315d Hadron™ AC² LCP grid fabric, it delivers unrivalled abrasion and weather resistance. With RollTop™ closure and large webbing pull-tabs for quick, glove-friendly access, it’s an ultra-light tool that’s capable of doing all the heavy lifting whilst you focus on the ascent. 315d Hadron™ AC² Nylon, Padded Straps, Moulded Back Panel, External WaterTight™ Zip Pocket, Internal Security Pocket, RollTop™ Closure, Drawcord Main Compartment , Adjustable Sternum Strap, Arc'teryx. Arc'teryx Alpha FL 30 Backpack Black