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Thermarest NeoAir Xtherm Large

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The Thermarest NeoAir XTherm sets new standards in size and weight for 4 season camping mats. This innovative mattress uses 4 layers of heat reflecting internal baffles to reduce heat loss by convection within the mat. The system of baffles also creates support and rigidity within the mat making for a more comfortable nights sleep. Weighing in at 570g and with a similar pack size to a 1l water bottle the NeoAir Xtherm is considerably smaller and lighter than any other pad of comparable warmth.

The NeoAir XTherm is also constructed of a more durable fabric than the lightest weight NeoAir mattresses, making it a better choice for the more general year round user than the Xlite range of mattresses. It also comes complete with an inflator built into the stuff sack to eliminate the problem of water vapour from your breath condensing inside the mattress in cold conditions.

Material Specs
Top fabric type: 30D rip HT nylon
Bottom fabric type: 70D nylon 
Valve: R-Valve 5.7


  • Colour: Green
  • Compressed Size: 28 x 11
  • Length: 196cm
  • Manufacturer: Thermarest
  • Temperature: -40 to 16+
  • Weight: 570g

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Melanie M.
United Kingdom

Love it! Love it! Love it!

I spent a night in my hammock, temps ranging from -5 to -7 and no cold air came from underneath. I’m very happy indeed!

Thermarest NeoAir Xtherm Large


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