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Thermarest Trail King SV - Large

2 left in Johannesburg


  • A combination of SpeedValve technology and AirFrame Construction creates a 3-season backpacking mattress that inflates in a matter of seconds
  • Alternating foam and air channels deliver 2.5 in. of high-loft support with a 1.8 R-value; most pads REI sells range in from 1.0 (minimally insulated) to 9.5 (well insulated)
  • SpeedValve technology combined with self-inflating foam creates swift inflation; auto-reversing SpeedValve deflates mattress in a flash


  • R-Value: 1.8
  • Weight: 1080g
  • Thickness: 6.3cm
  • Dimensions: 196x 51 x 6.3cm
  • Dimensions (packed): 21.5 x 33cm