Yes, our packs are built with the finest waterproof fabrics and, yes, you need a pack fly to keep contents dry when it pours rain. Our PACK FLY does the trick.
Small: 3.2 oz
Medium: 3.7 oz
Large: 5.1 oz
Small: 1525 cu-in - 2746 cu-in
Medium: 2746 cu-in - 4272 cu-in
Large: 4272 cu-in - 6407 cu-in
Mystery Ranch Pack Fly Small Shadow OS