Sea to summit Ether Light XT Extreme inflatable mat

Brave the cold with the Ether Light XT Extreme, the new standard for lightweight winter comfort. With an exceptional R-Value of 6.2 and dual-layer Thermolite insulation, it delivers serious warmth for global adventures. The extra-thick 10cm design uses Air Sprung Cells to conform to your body, offering stable, unparalleled support perfect for side sleepers. This mat provides extreme performance without the weight, packing down small for your trek. Enjoy quick inflation with the included pump sack and a secure sleep with the PillowLock system