Heres to having extra dry layers to slip into after those unexpected summer showers or bumpy raft trips. The Thunderhead Submersible Roll Top Dry Bag brings the ease of a small waterproof bag without sacrificing durability so you can keep your gear safe and dry. 1680D recycled nylon fabric TPU welded fabric construction Roll top waterproof closure 9 diameter, 19.5 height, 12.5 height when rolled three times and closed (usable space) 15L (915 cu. in.) 0.8 lbs