ETHERLIGHT XT INSULATED MAT. New 2019 models include the AirStream Pump-sack free with your premium mat. Extra thick (XT) loop baffle Air Sprung Cells™. SEA TO SUMMIT®. Multi-function valve integrates an inflate port with a one-way valve to prevent air loss before you seal the valve, a rapid air dump deflate port, and a fine tune button to adjust for comfort, in one compact, low profile unit.
