The EvoLite is built with a skeleton construction of foam beams with alternating air channels running across the width of the mattress.
Although the protruding foam beams look like they might create an uncomfortable sleeping platform the result is quite the opposite. You sink in to them as you would a conventional foam mattress, the air channels beneath providing support to keep your body clear of the ground below. The result is a level of comfort unrivalled by conventional air mattresses with the added bonus that the trademark rustling noise is all but completely gone.
An R-Value of 2.1 precludes the EvoLite from 4 season duties but as a 3-season mattress it performs the task of thermal regulation pretty well when combined with a good sleeping bag.
The top and bottom fabrics are durable 30d mini rip polyester which is a reasonable defence against jagged rocks and the like, saying this, if the EvoLite does succumb to a puncture it doesn't come with a repair patch making the optional repair kit a vital purchase.
As you might expect, the EvoLite is a slightly bigger package than most other lightweight expedition air mattresses but when compared to a pure foam mattress like the Therm-a-rest ProLite Plus, the EvoLite cuts a noticeable amount off both the weight and packed size.
As a best of both worlds compromise the EvoLite performs well and does it at a good price but it doesn't particularly excel in any one area.