- 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. Deflated Size: 72" x 20" (183 x 51 cm) Inflated Thickness: 1.5" (3.8 cm) Weight: 1 lb 13 oz (827 g) R-value: 3.2