Shipping Info:


Item #: 332273911

Brand New for 2017, The Trail King SV is the fastest self-inflating backpacking mattress from Thermarest. By combining their SpeedValve™ technology with AirFrame™ Construction, they have 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" 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.


  • Supportive Loft with AirFrame™ construction offers 2.5" (6.3 cm) of high-loft support.
  • Fast Inflation thanks to SpeedValve™ technology combined with self-inflating foam creates swift inflation.
  • Faster Deflation with Auto-reversing SpeedValve™ deflates mattress in a flash.


  • Dimensions: 77" L x 25" W x 2.5" H (196 x 63 x 6.3 cm)
  • Weight: 2 lbs 6 oz (1.08 kg)
  • R-Value: 1.8
  • Packed Size: 13" x 6.7" (33 x 18 cm)