Patagonia's roomiest backcountry pack, the Descensionist Pack 40L has a lightweight, fully featured design that meets all the needs of core backcountry riders and ski mountaineers out for a long day in varied terrain. Durable 210-denier CORDURA® nylon fabric makes the Descensionist extremely light and supple, but still provides burly puncture and abrasion resistance. The Descensionist has an asymmetrical spindrift collar that opens wide for easy packing and closes with the tug of a drawcord that simultaneously cinches the collar and closes the lid instantly for a secure seal against blowing snow. A handy side-access zipper provides an alternative entry to the main compartment and lets you access your gear quickly and a zippered top pocket on the lid makes sure your small essentials stay handy. Your shovel and avi tools have their own zip-closing pocket that features internal elastic cording to keep everything organized and allow instant retrieval. The suspension system includes a padded hipbelt with a stretch-woven stash pocket and a removable high-density foam back panel for structure and support with heavy loads. The front accessory straps make it easy to pack a snowboard or a pair of skis, and two sets of daisy chains provide multiple lashing options. Other features include a hydration sleeve and port and compression straps to manage different-sized. Made from 210-denier CORDURA® 86% nylon/14% polyester with a polyurethane coating. The base is 420-denier CORDURA® 100% nylon plain weave with a polyurethane coating.