Designed for bigger nights and longer bodies without adding bulk, the Sea to Summit Ultralight XR Insulated Air Sleeping Mat – Large is a lightweight, warm, and stable sleep system for backpacking, bikepacking, and thru-hiking. The mat’s 151 Air Sprung Cells contour to your body to reduce pressure points and improve stability, while the wider profile works brilliantly for side sleepers. ThermalCore insulation reflects body heat for an R-value of 3.6, and the hybrid 30/40D nylon with Ultrafresh-treated TPU laminate delivers proven durability for rugged terrain. With the XPRESS valve and integrated Airstream pump sack, inflation and fine-tuning firmness is quick and easy.

Sea to Summit Ultralight XR – Large Features & Specifications

• Unmatched stability: 151 Air Sprung Cells contour to your body and reduce pressure points.
• Wider profile: Extra width supports side sleepers and those who toss and turn.
• Proven durability: Hybrid 30/40D nylon and liquid-extruded TPU laminate for long-term performance.
• ThermalCore insulation: Reflects body heat to increase warmth and reduce packed size.
• Ultralight & compact: Packs down small for easy transport.
• Quick inflation: Integrated Airstream pump sack makes inflation fast and effortless.
• Extra thickness: 6.5 cm adjustable firmness for personalised comfort.
• XPRESS valve: High-airflow valve for inflation, pressure adjustment, and rapid deflation.
• PillowLock compatible: Included PillowLock patches help keep your pillow locked in place.
• Thickness: 6.5 cm
• Materials: Mat: 100% Nylon; Valve: 100% TPU; Insulation: TRM Reflective Film; Stuff Sack: 100% Nylon
• Comes With: Stuff sack with integrated pump sack
• Weight: 530 g
• Dimensions: 6.5 x 198 x 64 cm
• Packed Size: 10.5 x 22 x 10.5 cm