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Thermarest ProLite

Inflatable 2.5cm thick camping mat offering three-season comfort with a priority on minimal weight and maximum compactness. US R value is 2.4 (= 4.2 Tog).


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  • Small
  • £76.50
  • 2 in stock
  • Check Store Availability
  • Regular
  • £90.00
  • 2 in stock
  • Check Store Availability
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Thermarest ProLite Video


With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

You Pre-Order is prioritised (at no additional charge); meaning that, as soon as the product arrives with us, we can wrap it straight back up and get it sent out to you - it often never even hits the stock room shelves!


With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery Dates

Estimated Delivery Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery Dates provided on product pages.

The Current Estimated Delivery Dates for Thermarest ProLite is

Thermarest ProLite Description

  • Brand : Thermarest
  • Season : Not Applicable
  • Code : CAS PL
  • Packaged Weight : 0.51KG
  • Inflatable 2.5cm thick camping mat offering three-season comfort with a priority on minimal weight and maximum compactness with die-cut foam that eliminates excess weight and rolls up ultra-compact. Bottom grips and textured top surface hold the mattress in place while you sleep.

    Now featuring exclusive Atmos™ Foam to further reduce weight and boost compressibility, the ProLite 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. It™s ideal for high-mileage, high-speed journeys where every gram counts.

    • Lightweight: The lightest self-inflating mattress available.
    • Efficient Warmth: Diagonal-cut channels in the foam reduce bulk and retain heat better than straight-cut foam.
    • Highly Packable: Ultralight, diagonal-cut Atmos Foam and a tapered shape keep the ProLite mattress extremely pack friendly.
    • Self-Inflating: Expanding foam core self-inflates; top off with just a few breaths for personalised firmness.

    US R value is 2.4 (= 4.2 Tog).

    Stuff sack included.

    Thermarest Prolite
    Type Dimensions Packed Weight
    Regular 183 x 51 x 2.5cm 28 x 10cm 480g
    Small 119 x 51 x 2.5cm 28 x 8cm 335g

    Buyers Guide

    Togs and R Values: Typically used in the British textile industry, one Tog corresponds to the heat insulation capability of clothing etc which maintains a temperature difference of 0.1°Kelvin while passing a heat flux of 1 Watt/m2*. Some manufacturers (mainly US ones) give an R Value for the insulation properties of their mats. By this they mean an imperial equivalent (°F-ft2-h/Btu). To convert Imperial R values to Togs, multiply by 1.76228. To confuse matters there is also a metric R value, more properly called an RSI value (10 Togs = 1 RSI).
    The higher the Tog or R (or RSI) value the better the insulation provided.
    If you aren't totally confused by the above you should add to the mix that testing for R/Tog/RSI ratings is not by any means an exact science and that it is also expensive so, it is alleged, some figures that are given may be acquired by doing little more than taking a competitor's figure and adding a pinch for good measure. Of course, who is alleging what about whom is also not easy to ascertain!
    *NB One Tog was originally a war time measurement of the amount of warmth retained by a typical male wearing a three piece suit - it originated from research done in the North of England - hence the term tog (though this in turn is thought to originate from the Roman word toga)!

    Sizing Information

    Thermarest Prolite Dimensions Packed Weight
    Regular 183cm x 51cm x 2.5cm 28cm x 10cm 480g
    Small 119cm x 51cm x 2.5cm 28cm x 8cm 335g


    Technical Information

    Thermarest ProLite
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