| Designed for use in extreme temperatures and hostile environments, the Ionosphere 5.5 mattress features the best technology to protect you from freezing. Its design reduces heat loss by both radiation and convection, thanks to TILT thermo-reflective technology and air-trapping Stratus™ R insulation. With its superior warmth-to-weight ratio and compact size, this super-comfortable mattress is ideal for mountaineers and ski tourers who need to stay warm in the world's most extreme conditions.The mattress features thoughtful details to maximize your comfort, including XXL outer compartments to keep you in the center of the mattress, and a grippy silicone print to reduce sleeping bag slippage. T… | Compare prices4→ |