Black Diamond Covert Avalung M/L Pack 2012 - Optimized for day-long backcountry tours, the Black Diamond Covert stores everything you need for day-to-day off-piste travel and increases your chance of survival in the event of a slide thanks to its built-in AvaLung. The spacious interior organizes your avy tools and has enough room for lunch, layers and skins, while the fleece-lined goggle pouch and tuck-away helmet sling stash your accessories on the skin track. When you hit the ridgeline, the Black Diamond Covert's diagonal ski-carry cable secures your planks.