This ultralight, waterproof sack with a breathable, ergonomic back panel keeps you cool and comfortable as you push through rugged terrain. The multiple gear attachments and side water bottle pockets keep your gear at easy reach. Avg. Weight (oz./g): 17.7 / 502 Dry Bags are not intended to be submerged for extended periods of time. Roll-top closure must be closed correctly (rolled 3 times and buckled) to keep contents dry. Pack electronic equipment with extra care (double bagged or in special w