• Innovative ergonomic design with pressure chambers to evenly distribute pressure and relieve joint tension. • Side rails that help center the body and prevent it from slipping off the base. • Provides comfortable support that keeps the body away from the hard, cold ground. • 40D nylon resistant to water, abrasion, and tearing, flexible and sealed against air leaks. • Waterproof surface easy to clean with a damp cloth. • Ultralight and super compact, weighing only 0.57 kg. • Double-layer design for quick deflation in 1 second. • Integrated pillow for all sleeping positions.