These lightweight and very compact technical mats are ideal for mountaineering and backpacking trips. Features Die-cut open-cell foam for rapid inflation/deflation, excellent insulation and extra comfort on rough or uneven surfaces Top Fabric Lightweight and durable, TPU-coated diamond ripstop nylon fabric with an anti-slip surface to help reduce sleeping bag slippage Bottom Fabric Heavy-duty, TPU coated nylon with a non-slip surface Top quality, super strong brass valve for quick and easy inflation and deflation. Will not break in sub-zero weather Comes with a stuff sack and repair kit Specifications 3/4 Length Size 48 x 20 Thickness 1.5 Weight 1 lb. 5 oz. R-Value* 3.2 * The R-value is a measure of insulating properties. It describes an item's resistance to heatflow. The higher the R-value number, the slower heat will escape. To achieve the listed Chinook R-values, ensure your mattress is fully inflated SOLD QUANTITY 1