Therm-a-Rest - Trail King SV

  • Sale
  • $101.88
  • Regular price $188.95

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: 72" L x 20" W x 2.5" H (183 x 51 x 6.3 cm)
  • Weight: 1 lb 13 oz (830 g)
  • R-Value: 1.8
  • Packed Size: 11" x 6.6" (28 x 17 cm)