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  • Designed for cold-weather use with R-value 6.2 
  • Dual-density layers of THERMOLITE insulation
  • Extra thick (XT) Air Sprung Cell construction for 10cm stable comfort
  • Independent Air Sprung Cells™ for a more comfortable sleep
  • Lightweight, quiet and grippy 30/40D Nylon face fabric with field repairable with included self-adhesive patches
  • Ultra-Fresh anti-microbial treatment added to the TPU formula prevents internal mould growth
  • Pillow Lock attaches an Aeros pillow to mat holding it in place
  • Quick and easy inflation, deflation and adjustment with the multi-function, high flow-rate valve and supplied Airstream Pump Sack
  • Includes an Airstream™ Pump that is integrated into the stuff sack for quick and easy inflation

Sea to Summit Sleeping Mat Insulated Ether Light XT Extreme Rvalue 6.2

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Sea To Summit's EtherLightXT Extreme premium mat for year round camping - extra thick and exceptionally warm sleeping comfort for extreme conditions. With a high R-value of 6.2, the 10cm thick air mat redefines lightweight sleeping comfort for winter adventures!

Sea to Summit’s Air Sprung Cells are the reason you will sleep better on this air mat. Each Cell deforms independently and allows the mat to conform to your body shape, providing premium support and comfort by more evenly dispersing pressure across the mat’s surface.

For the extra thick (XT) EtherLight design, many TPU loops are used to connect the top and bottom fabric layers to the Air Sprung Cell dot weld pattern. These loops allow the top and bottom layers to be positioned further apart which creates larger pockets of air when inflated—perfect for side sleepers. This design also requires less fabric overall which means great stability and comfort for less weight.

Dual-density layers of THERMOLITE insulation fill the Air Sprung Cells and work together to prevent convective heat transfer and boost warmth while remaining lightweight and packable. When the temp drops, the EtherLightXT Extreme’s 6.2 ASTM R-value will keep you cushioned and insulated from the cold hard lumps and bumps beneath.

Comes in two sizes - Regular mat size 183cm long x 55cm wide by 10cm thick, 720g and Large 198cm long x 64cm wide x 10cm thick, 950g

  • Colour: Black/Orange
  • Inflated mat size: Regular 183 x 55 x 10cm, Large 198 x 64 x 10cm
  • R-value: 6.2 ASTM
  • Mat weight: Regular 720g, Large 950g
  • Packed size: Regular 24 x 17.5cm, Large 28 x 18.5cm
  • Mat: 100% nylon
  • Valve 100% TPU
  • Insulation: 100% polyester
  • Stuff Sack: 100% nylon