Ultimate Comfort Camping Sleeping Pad: V-shaped design with 4-inch thick air layer provides support, keeping hips and shoulders suspended to eliminate pressure from hard ground. Silent, non-slip surface ensures quiet movement. Built-in pillow supports neck curve. Supports up to 400 pounds. Inflation: single-foot pump quickly inflates by stepping on valve leak-proof design maintains inflation over 24 hours. Deflation valve releases air instantly. Material: 50D nylon with Tpu coating resists punctures and tears on various terrains including rocks, gravel, sand, and frozen soil. Size: 79x27.5x4 inches inflated weighs 1.9 pounds packs to 10x4 inches. Easy to clean with damp cloth. Suitable for camping, hiking, car camping, and backyard use.