The ALPS Mountaineering Outback Mat is designed for serious comfort and support. This self-inflating mattress is 4 inches thick, with vertically cored foam that makes it easy to roll up and reduces weight. Two one-way valves make it easy to inflate and deflate. A stuff sack and repair kit are included. Features: - 30D elastic top fabric - 150D black bottom fabric - Vertically-cored foam for a lighter weight and easier to roll up - Two one-way valves for easy inflation - Valves also open completely for easy deflation - Stuff sack and repair kit included - Dimensions: 32: x 80" x 4" - Weight: 7 lbs. 7 oz.