The Thermarest Trail King SV takes the lightweight Airframe design from the Evolite and combines it with their SpeedValve technology in a thick mat for an excellent level of comfort from a lightweight mat. It makes for a comfortable mat which with an R value of 1.8 will be best for warmer season use, and with the SpeedValve it's super quick to set up and deflate.
The Trail King SV is inflated quickly with the innovative Speed Valve which makes inflating and deflating the mattress much easier as it sucks in air from the outside as you blow into it, so not only does the mat inflate quicker, you use less breath. The Ultralight AirFrame construction uses alternating channels of foam and air which retains the self inflating ability of the mattress but without the bulk. The self inflating properties of the mat help the speed valve work effectively when inflating the mat. The other advantage of the SpeedVlave is that it makes deflating the mat almost instant, so packing it away is quick and easy.
|Regular||51 x 183cm||6.3cm||28 x 17cm||830g||1.8|
|Large||63 x 196cm||6.3cm||33 x 18cm||1080g||1.8|
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Closed cell foam mat with heat reflection. 2 sizes. 400g. R-Value 2.8.