Vanguard Alta Rise 45 Backpack (Black)The ALTA RISE 45 backpack with the +6 revolution offers you the possibility to supersize, or downsize, with one easy zipper motion, while still keeping gear protected. So when more gear or personal storage is called for, there is no need to switch bags. Designed for intuitive use, you will find that the quick action, side flap opening allows you grab and shoot in split seconds when releasing one shoulder strap and swinging the backpack around.