The Trail King SV combines Thermarest's SpeedValveâ„¢ technology with the AirFrameâ„¢ Construction to create a premium lightweight backpacking sleeping mat that inflates in a matter of seconds.
A combination of technologies that's all new
The SpeedValve uses some clever fluid dynamics to drag extra air into the bag along with your breath, when you blow at it from a distance. Thanks to the airframe construction, this air is then easily able to move down the mat and get into the air-permeable foam at the core of the mattress. So, you get partial support from the AirFrame beams, and partial support from the foam core, for a super-comfy night's sleep that's ready in double-quick time.
Speedy inflations and deflations
The mat's Speed Valve tech combines with the AirFrame super fast to inflate, but it makes it even quicker to deflate - ideal for those cold mornings when you're packing up camp.
Reliable three-season comfort
The Trail King comes with 6.3cm or 2.5in of loft of ultra-supportive loft, and has an R-Value of 1.8, making it a reliable three-season mat that's designed to save you precious time when you're trekking in the backcountry.
Have a look at our Therm-A-Rest Buy Guide and Comparison Table for more information.