STS - SEA TO SUMMIT Ether Light XR Pro Insulated ASC Mat

The Ether Light XR Pro Insulated ASC Mat by Sea to Summit is the pinnacle of ultralight, four-season sleeping comfort and warmth, designed for backpacking, thru-hiking, and alpine adventures. Featuring innovative ThermalCore technology, this mat delivers an outstanding ASTM-tested R-value of 7.4, ensuring exceptional insulation against extreme cold without adding bulk.

Constructed from durable 30/40D nylon with TPU lamination and multiple TRM reflective insulation layers, the XR Pro balances ruggedness and weight at just 18.5 oz (525 g). Its Air Sprung Cell construction creates a plush 10cm-thick sleeping surface that provides stable, cushiony comfort for any sleeping position, whether you sleep on your back or side.

Inflation and deflation are effortless with the integrated XPRESS valve and the Airstream pump built into the stuff sack, enabling quick setup and pack-down on the trail. Enhanced weld strength doubles the durability of previous models, making this mat perfectly suited for winter camping and harsh alpine conditions.

Key Features:

• ThermalCore Insulation: Multiple layers of quiet yet thermally efficient TRM insulation reflect radiant heat back to you, reducing heat loss and internal air movement.
• Four-Season Use: Tested and rated with an R-value of 7.4 for superior warmth in cold and extreme cold weather.
• Air Sprung Cell Construction: 10 cm thickness for plush, supportive comfort adaptable to all sleeping styles.
• Lightweight & Compact: Weighs only 18.5 oz (525 g) with a packed size of 21 x 12 x 12 cm, ideal for ultralight backpacking.
• Integrated Inflation System: XPRESS valve and pumpsack in the stuff sack allow fast, easy inflation, adjustment, and deflation.
• Enhanced Durability: Double the weld strength of previous models to withstand tough outdoor conditions.

This mat offers the perfect blend of warmth, comfort, and packability, making outdoor winter sleep feel luxurious and secure. Whether you're a dedicated alpine adventurer or a winter camper, the Sea to Summit Ether Light XR Pro Insulated ASC Mat ensures you stay cozy on every expedition.