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Thermarest Prolite Regular

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The Thermarest Prolite Regular is a lightweight and compact, self-inflating foam sleeping mat, ideal for high-mileage, high-speed journeys where every gram counts.

Now featuring Atmos Foam to further reduce weight and boost compressibility, the Thermarest Prolite Regular is the lightest and most compact three-season mattress available. Self-inflation keeps set-up super-easy and its die-cut foam packs small, easily fitting inside the most ultralight packs, making it perfect for fast and light adventures. Stuff sack included.

Atmos Foam

Atmos foam provides outstanding loft while also maximising compressibility and minimising weight. The secret is in the manufacturing process. Foam is typically produced in open containers where chemicals and 'foaming agents' are mixed. This causes a reaction in which air bubbles get captured in the material as it changes from liquid to foam.

Atmos foam goes through the same process but in an atmospherically-controlled chamber, in nearly weightless conditions, netting two key benefits. First, this allows the foam to rise unhindered by the weight of the liquid itself, resulting in a much higher and uniform distribution of air cells, absent of dense areas that can add weight and compromise performance. Second, 100% of the gasses resulting from the reaction can be captured and filtered before it is released into the atmosphere, making this the cleans foaming process in the world. More comfort for you, less harm to the environment for everyone, and it's manufactured in the USA 


  • Compressed Size: 28 x 10 cm
  • Length: 181cm
  • Width(at widest point): 51cm
  • Thickness: 2.5cm
  • Manufacturer: Thermarest
  • Temperature: -6 to +16
  • Weight: 480g

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Robbie K.
United Kingdom

Thermarest Prolite Regular

Good service. Straightforward transaction and prompt delivery.