Freerain22 Waterproof Packable Backpack Matador Matador Freerain22 Waterproof Packable Backpack Matador Freerain22 Waterproof Packable Backpack Black WildBounds Matador Freerain22 Waterproof Packable Backpack Review (2 Weeks of Use. The Freerain22 Waterproof Packable Backpack lives for bold trips with bad weather. Ultralight and technical, it's designed to keep your gear dry, carry comfortably, and disappear into its own pocket when the day's done. 22L capacity Waterproof sealed seams + rolltop closure Rolltop + zipper closure Packs into compression sack UHMWPE reinforced wear panels Breathable shoulder straps Removable hip belt Adjustable sternum strap (removable) Water resistant front zipper pocket Compression straps with side release buckles Load lifters Two gear loops + shockcord captures *Not intended for submersion