- AirFrame construction offers 2.5 inches (6.3 cm) of high-loft support.
- SpeedValve technology combined with self-inflating foam creates swift inflation.
- Auto-reversing SpeedValve deflates mattress in a flash.
By combining the SpeedValve technology with AirFrame Construction, Therm-A-Rest has created a backpacking mattress that inflates in a matter of seconds. Plus, thanks to the auto-reversing SpeedValve, the mattress deflates at remarkable speeds. This unprecedented ease-of-use is fused with 2.5 inches of ultra-supportive loft and an R-Value of 1.8, making the Trail King SV a reliable and three-season mattress designed to save you precious time in the backcountry. Stuff sack included.