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Your cart is empty.The Sea to Summit Ether Light XT Extra-Thick Insulated Women’s Air Mattress is a lightweight, 3-season sleeping pad for backpacking, camping, and bike touring. Its Air Sprung Cell construction mimics a spring mattress, maintaining more body contact area and even dispersion of pressure for restful backcountry slumber. At 4 inches thick, the sleeping pad features a single-layer design with flexible loops that create large air pockets, providing a plush, deep sleeping surface that is ideal for side sleepers; pad is shaped specifically for women, cut narrower at the shoulders and wider around the hips and knees. The multi-function reversible valve allows for fast and easy inflation—with the integrated Airstream Pumpsack which inflates the pad in just a few breaths—one-way deflation for quick packup, and fine-tuning of air pressure for a good night’s sleep. The insulated pad features Thermolite insulation which lofts up inside the Air Sprung Cells to prevent convective heat loss to the cold ground (women’s pads have a thicker layer of insulation than unisex pads), as well as Exkin Platinum reflective fabric which radiates heat back during sleep (R-Value of 3.5—the higher the R-value, the warmer the sleeping pad). Non-slip 30D/40D nylon face fabric is durable and quiet. The Sea to Summit Ether Light XT Extra-Thick Insulated Women’s Air Mattress is available in two sizes: Regular measures 66 x 21.5 x 4 inches, packs to 4.5 x 11 inches, weighs 1.1 pounds; Large measures 72 x 25 x 4 inches, packs to 4.75 x 11 inches, weighs 1.3 pounds. Includes stuff sack, field repair kit, and PillowLock patches for securing a Sea to Summit pillow to mat. Sea to Summit products are guaranteed against defects in materials or workmanship for the lifetime of the product.