Sea to Summit Ether Light XR Insulated ASC Mat - Rectangular Large Wide grey dark

Three-season backcountry sleep with packable Air Sprung Cell comfort and efficient ThermalCore insulation.

The Sea to Summit Ether Light XR Insulated Mat is designed for backpackers and bikepackers who need reliable sleep quality without sacrificing pack space. The 10 cm Air Sprung Cell construction distributes weight evenly across the mat and accommodates all sleeping positions, while a suspended TRM layer reflects body heat back to the sleeper. An ASTM-tested R-Value of 4.1 makes it suitable for three-season and shoulder-season conditions.

Features

• ThermalCore insulation with suspended TRM layer reflects warmth back to the sleeper

• 10 cm Air Sprung Cell construction supports all sleeping positions

• ASTM-tested R-Value of 4.1 — rated for 3+ season use

• XPRESS valve and integrated Airstream pump sack for fast inflation and deflation

• Increased weld strength for enhanced durability

• Rectangular cut in Large Wide sizing

Technical Specifications

• Material: 30/40D nylon, TPU laminated fabric

• Dimensions: 198 cm × 64 cm

• Thickness: 10 cm

• R-Value: 4.1

• Weight: 725 g