All inflatable and self-inflating Therm-a-Rest mattresses get a new valve in 2020. The WingLock Valve is Therm-a-Rest’s third valve design in a nearly 50-year history, so is a significant milestone not undertaken lightly. It’s the result of over 100 prototypes and more than 500 nights in the field. The new valve allows their mattresses to inflate 3 times faster and features one-way inflation – so no more fear of wasted breaths. When it’s time to break camp, open the valve and twist the wings to deflate your pad twice as fast as the classic valve.
See http://e.ampro.co.nz for more information.