Therm-a-Rest® has been perfecting the camping mattress for 45 years, and the Trail King SV is the culmination of
that quest. TheTrail King™ SV—the fastest self-inflating mattress yet. By fusing AirFrame™ Construction, which alternates channels of foam and air, with the SpeedValve™, Therm-a-Rest has created a mattress that inflates in seconds, and deflates in a flash, giving you more time to have fun outside.
Weighing just 830g , the Trail King SV is light enough for backcountry travel, but its 6.3cm of thickness provides a level of comfort car campers expect.The true magic of the Trail King, however, is how easy and fast it is to use. Just open the proprietary SpeedValve—which uses physics to draw in surrounding air—and watch as the mattress' alternating foam and air channels expand before your eyes in a flash. Top it off with a few breaths by blowing into the SpeedValve and you're all set. And when it's time to get back on the trail, the proprietary, auto-reversing SpeedValve will allow you to deflate the mattress in mere seconds.
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