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For over 50 years, Therm-a-Rest has led the way in outdoor sleep innovation, setting the benchmark for warmth, comfort, and packability. The NeoAir range continues this legacy, offering ultralight performance with the XLite NXT, extreme cold protection with the XTherm NXT, and unmatched comfort with the Topo Luxe. Whether you're counting ounces on a thru-hike, braving alpine conditions, or priorit …

Ether Light XR is the thickest and warmest sleeping mat in our Ultra Light range, due to using new insulation, Thermal Core®. The Air Sprung Cells still provide four inches of stability and comfort, while Thermal Core® insulation prevents convective heat loss and internal air movement. This results in true four-season performance perfect for backpacking, light weight camping, bikepacking a …