The new Ether Light XT Air Sleeping Mat is perfect for warmer-weather backpackers and campers looking for a quiet, lightweight air sleeping mat that offers a high degree of comfort. The XT Air-Sprung Cells use loops of a strong, flexible material to provide a plush sleeping experience. The uprated 30D / 40D face fabric is quiet and durable, and the lamination technology continues Sea to Summit's class-leading reliability.