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Thermarest Evolite Small Sleeping Mat

R-Value: 0.37 / Dimensions: 119 x 51 x 5cm / Packed Size: 20 x 10cm
Weighs 344g
Code: SS15102
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  • RRP £84.99
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Thermarest's Evolite mats combine the convenience of self inflation with the comfort of a hybrid airbed construction with a small increase in weight and packed size compared to insulated airbeds.

Thermarest says: Air mattress fans rave about comfort and self-inflating mattress fans hold fast to convenience and reliability, but what if you could have both?

Enter the all new EvoLite mattress. Its patent-pending AirFrame construction combines the ultralight, high-loft comfort of an air mattress, with the convenience of self-inflation, creating the next big leap in camp comfort innovation. 2-inches (5 cm) of loft deliver bump-swallowing comfort and support while our exclusive Atmos Foam beams expand to inflate your mattress, leaving just a few breaths to top it to your desired firmness.

And of course, it’s ultralight and compact enough to keep it squarely in the realm of those looking to move with a minimum through the backcountry.

Atmos foam:

Our exclusive Atmos Foam is the lightest and most advanced foam made. Poured in an atmospherically-controlled chamber, a near zero-gravity environment allows the foam to loft higher and more uniformly than any other process.

In addition, the controlled environment allows all the gasses to be captured and “scrubbed” before being released, making this the cleanest and most environmentally-friendly foam production in the world.

Thermarest's Evolite combines characteristics of self inflating foam mats and insulated airbeds. For just a small increase in weight and packed size (compared to a NeoAir insulated airbed) you get a mat that inflates itself and yet offers a higher comfort level than the standard self inflating mats.

This is going to be a popular mat with those who want more comfort but are worried about the reliability of an airbed on a long trek.

- Reviewed by Ultralight Outdoor Gear

We've tabled the five models of NeoAir mats below, along with the Evolite Hybrid mat, so you can make a high level comparison.

Model (Regular used for reference)WeightR-ValueInsulationFormatPricepointMaterials
NeoAir Xlite350g0.563 SeasonMummyMid PriceUltra lightweight
NeoAir Xtherm430g1.04 SeasonMummyMost ExpensiveUltra lightweight
NeoAir Trekker480g0.533 SeasonRectangleCheapestMore Durable
Evolite*480g0.373 SeasonMummyCheapestMore Durable
NeoAir All Season (includes pump)600g0.863 Season+RectangleMid PriceMore Durable


Read reviews here:      
Help and advice: 

  • 2” of Loft and Comfort: No other ultralight self-inflating mattress provides this amount of comfort.
  • Ultralight, AirFrame Construction: Alternating foam and air channels allow us to drastically reduce weight and packed size while amplifying loft.
  • Supportive Atmos Foam: Our exclusive Atmos foam is poured in an atmospherically-controlled chamber, allowing us precision control over uniformity and loft. The result is the lightest and most compressible foam on the market.
  • Self-Inflating Convenience: Excellent self-inflation allows just a few breaths to top off the mattress for optimal firmness.
  • Dimensions: 51 x 119cm
  • Packed Size: 20 x 10cm
  • Thickness 5cm
  • R-Value (US): 2.1
  • Weighs 344g
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