Western Mountaineering Lynx -10 Degree Down Sleeping Bag with Gore WindStopper Shell — When getting to a backcountry bowl with enough energy to enjoy the fresh powder, being fast and going light is crucial. That’s why the Lynx in Gore Windstopper™ is your choice. This powerhouse of a bag is packed with 33 oz. of 850+ down, and weighs in at 3 lbs. 8 oz. This efficient cut, -10° bag has a full 3-Dimensional down filled collar completely made with Gore WindstopperTM fabric. The draft tube is also Gore Windstopper™ fabric and has a stiffening tape. Its V-Block Side Baffle insures perfect down control so that down stays where it’s needed most. Caution! This much warmth in so small a package may reach critical mass!