The Fastest Self-Inflating Backpacking Mattress: By combining 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.
Top: 50D print polyester
Bottom: 75D polyester
Foam: Urethane Foam
Supportive Loft: AirFrame™ construction offers 2.5 inches (6.3 cm) of high-loft support.
Fast Inflation: SpeedValve™ technology combined with self-inflating foam creates swift inflation.
Faster Deflation: Auto-reversing SpeedValve™ deflates mattress in a flash.