Featuring Therm-A-Rests SpeedValve technology the Xtherm Max is the ultimate compact and lightweight four season mattress! This super warm mat is extremely comfortable and packs down to the size of a 1 litre water bottle. The SpeedValve is a valve that allows the matt to be inflated 2-3 times faster than traditional valves. Blowing into the SpeedValve creates a pressure differential that draws in surrounding air to fill the mattress fast and with less effort. When you blow into the valve from several inches away, your breath sends fast-moving, low-pressure air through the neck of the mattress, causing the static, high-pressure air outside the mattress to rush in to equalize the pressure. Put simply, every breath pulls in surrounding air molecules to amplify the airflow and inflate the mattress faster and with less effort than with traditional valves. The auto-reversing SpeedValve design allows the mattress to be quickly deflated in the morning.
The secret behind the NeoAir XTherm's performance is the clever ThermaCapture heat reflective coating and Triangular Core Matrix construction. Approximately 140 Triangular baffles are arranged in such a way that it essentially created 2 stacked layers of heat reflective baffles. The upper layer of baffles traps the radiant heat given off by your body and reflect it back up and away from the cold ground, while the lower baffles trap the cold air. Due the arrangement of these baffles conductive heat loss is greatly reduced and results in a warm and comfortable night’s sleep.
This clever construction does away with the need to insulate the internal space of the mat with insulating materials, keeping the weight and packsize to an absolute minimum. The horizontal baffle construction increases stability and reduce the bounce normally associated with longitudinal baffles. The fabric of the mat is a tough yet very lightweight high tenacity 30D Nylon, and the bottom fabric is a super tough 50D polyester for increased durability.
This mat has a R-Value of 5.7 which in real terms relates to true 4 season performance, so it is perfectly suitable for use on snow or frozen ground. R-Values are an international standard of insulation and (in simple terms) indicate the materials ability to reduce heat flow through conduction, radiation or convection. Therefore the higher the R-Value, the lower the heat transfer and the greater the insulation properties of the material.
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Ultralight 4 season performance
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ThermaCapture Technology
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Triangular Core Matrix
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6cm Depth
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Comfortable
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Ultra-packable