Sea to Summit 4 Season Air Mat Color: Black Size: Regular Item No.: ST81094001 The "Ether Light XT Extreme Mat," the warmest of the Ether Light series, has been redesigned. A multi-layer reflective film has been newly adopted in place of the conventional Thermolite insulation. By radiating body heat and minimizing convection within the mat, effective insulation is ensured. While being 170g (regular size) lighter than the previous model, the R-value has increased from 6.2 to 7.5. ・Newly adopted multi-layer reflective film ・Air Sprung Cell construction ・Lightweight, quiet, and grippy 30/40D nylon ・Extrusion TPU lamination ・Multi-function valve ・Pillow Lock system ・Repair kit included ●Thickness: 10cm ●R-value: 7.4 ●Weight: 560g ●Outer dimensions: 183 x 55cm ●Packed size: 12 x 21cm Search Camping Mountaineering Snow mountain tent camping Sea to Summit Ether Light Ether Light Pro