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Sea to Summit's lightest and thickest full size Air Sprung Cell™ Mat with insulation for all-season comfort.


Insulated for all-seasons, this mat refines lightweight cold-climate sleeping comfort, combining a lightweight 30/40D Nylon fabric, Exkin Platinum® and THERMOLITE® insulation with a loop baffle Air Sprung Cell™ construction to create a 10cm thick mat with an incredibly low weight.


The looped baffles create larger pockets of air when inflated that require less fabric overall, reducing weight.


Perfect for side sleepers, the extra height of this mat lets hips sink deeper into it without touching the ground.


Includes FREE Airstream Pumpsack integrated into the included stuffsack and self adhesive repair kit.

Sea to Summit Etherlight™ XT Insulated

Out of Stock
  • • eXtra Thick (XT) loop baffle Air Sprung Cells™

    • Lightweight, quiet and grippy 30/40D Nylon fabric, field repairable with included self-adhesive patches

    • Exkin Platinum® and THERMOLITE® for insulation

    • Air Sprung Cells™ for a more comfortable sleep

    • Ultra-Fresh® anti-microbial treatment to the TPU formula to prevent internal mould growth

    • Pillow Lock™ attaches an Aeros™ pillow to mat

    • Multi-functional, high flow-rate valve



    Small 168 x 55 cm Rolled Size: 11 x 24cm Weight: 440g

    Regular183 x 55 cm Rolled Size: 11 x 24cm Weight: 460g

    Large 198 x 64cm Rolled Size: 12 x 28cm Weight 595g

    Thickness: 10cm.

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