Sea to Summit Ether Light XT Insulated Air Mat Women's

The Sea to Summit Women's Ether Light XT is an insulated air pad rather than a foam-backed design, using Air Sprung Cell baffles for a contoured, mattress-like surface at 10 cm thick — among the thickest pads in the range. Insulation comes from Thermolite fill paired with an Exkin Platinum reflective layer, giving an R-value of 3.5 (ASTM F3340-18) for solid three-season use. At 495 g in Regular size (168 × 55 cm), that works out to roughly 141 g per unit of R-value, a strong ratio reflecting the efficiency of air-cell construction over a foam core, and one of the better warmth-to-weight numbers in this women-specific lineup. The women's shaping widens the hip area, and the 30D/40D nylon fabric carries a TPU lamination for durability with a soft, brushed feel. Two valves plus an included pump sack speed inflation, and Sea to Summit rates the pad as quiet to sleep on. Suited to three-season backpackers who want genuine air-pad comfort and real insulation without the bulk of a foam core, including thru-hikers watching pack weight.