The BCA Stash Pro 40 Backpack is the ultimate backcountry chameleon a light, versatile pack capable of expanding with a roll top closure for epic alpine missions, then cinching down with compression straps when you’re traveling light. With clever access points like the side zip and Side Stash pocket, this pack lets you grab what you need without unpacking your entire kit, making those long mountaineering days feel a little less like a game of gear Tetris.