The innovative Therm-a-Rest EvoLite mattress combines the convenience of self-inflation with the comfort of air in a uniquely built package that offers a full 2” of loft! A 2.1 R-value makes the EvoLite great for 3-season use, and a small packed-size makes it an easy ultralight backpacking companion.
The EvoLite mattress features Therm-a-Rest’s Airframe construction, which incorporates alternating foam and air channels to drastically reduce weight while amplifying loft. The open-celled Atmos foam used in the EvoLite is poured in an atmospherically-controlled chamber, which allows Therm-a-Rest to tout uniformity in the quality of each mattress in which it’s employed; Atmos foam is also extremely compressible. Durable face fabrics provide a textured surface that keeps you on the pad at night.
A self-inflating design allows you to simply unroll the EvoLite and open the integrated air valve. The Atmos foam responds by soaking up air, similar to a sponge absorbing liquid. Once the EvoLite has inflated, just a few breaths are needed to top off the fullness of the air chambers. If the mattress is too firm, pressing down lightly on it with the air valve open will release some air.
The Therm-a-Rest EvoLite is available in Small (20" x 47"), Regular (20" x 72") and Large (25" x 77") size options. Therm-a-Rest includes a stuff sack with every EvoLite mattress.
- Inflatable sleeping pad
- Patent pending AirFrame construction combines high-loft comfort and compactness in an air matress
- Light, durable fabrics for a smaller pack size and dependability in the backcountry
- Alternating foam and air channels drastically reduce weight and packed size while amplifying loft
- 2.1 R-Value
- Atmos foam is poured in an atmospherically-controlled chamber, allowing us precision control over uniformity and loft.
- Stuff sack and repair kit included
Best Use Backpacking Warranty Limited Lifetime Type Self Inflating Sleeping Pad R-Value 2.1 Packed Size Small: 9" x 4.9"
Regular: 9" x 5.3"
Large: 11" x 5.6"
Other Stuff Sack Included Item Weight Small: 11.5 oz
Regular: 1 lb 1 oz
Large: 1 lb 7oz
Dimensions Small: 20" x 47" x 2"
Regular: 20" x 72" x 2"
Large: 25" x 77" x 2"