Buying a pack thats deemed obsolete two months later is a bitter thing to experience. The North Face Primero 60 Backpack, however, is practically immune to outdatedness. Its sturdy foundation is The North Faces flexible X-Radial suspension, crossed 7075 aluminum stays that pivot with the twisting and bending of your body. The formable EVA foam back panel breathes deeply, cleans easily, and resists odor, and retains its shape through use and abuse. Durable, highly water-resistant shell fabric protects your gear from tough trail conditions, and The North Face gave this pack a waterproof bottom to block muck from seeping in when you set it down. A waterproof hood seals out light showers that try to soak your spirits and supplies.