Jump to: Our Verdict / Features / Specifications
We're working out what we think - we'll add our view here!
Sea to Summit says:
Lighter. More Packable. Proven Durability.
151 individual Air Sprung Cells conform around your body reducing pressure points and provide far greater stability than traditional baffled air mats.
Hybrid 30/40D fabric and an extruded TPU internal laminate with Ultrafresh Antimicrobial treatment has a 10-year proven track record
Light and effective ThermalCore insulation uses a TRM layer to reflect body heat back to the sleeper, resulting in a 16% R-Value increase for 2026.
Our Verdict
We're working out what we think about Sea to Summit's Ultralight XR Insulated Mat - Large, we'll add our comments here in due course.
- Reviewed by Ultralight Outdoor Gear
Features
- XPRESS valve
- Liquid extruded lamination
- 30D/40D Nylon
- Stuff sack with integrated pump sack
- New dot-weld Air Sprung Cells for 6.5cm of stable comfort
- TRM Material reflects back heat
- 14% Lighter, 30% Thicker, 16% More insulative, 53% Smaller packed volume, 8% more sleep area than competitor mats
Specifications
- Weight: 540g
- Dimensions: 198 x 64 x 6.5cm
- Packed Dimensions: 22 x 10.5cm
- R-Valve: 3.6
- Thickness: 6.5cm x 2.6in
Material & Construction
- Hybrid 30/40D fabric
- Ultrafresh Antimicrobial treatment