Made for comfortable camping in colder conditions, the Sea To Summit Ether Light XT Insulated Mat is a 10cm thick mat with an incredibly low weight. It uses lightweight 30/40D Nylon fabric over Exkin Platinum; and THERMOLITE; insulation, with 'loop baffle' Air Sprung Cell construction. This creates large pockets of air that require less fabric overall, so the mat is thick and insulating, perfect for side sleepers - its extra height lets your hips sink deeper into it without touching the ground.Lightweight, quiet and grippy 30/40D Nylon fabric_ Self-adhesive repair patches included_ Exkin Platinum; and THERMOLITE; for insulation_ Air Sprung Cells for a more comfortable sleep_ Ultra-Fresh; anti-microbial treatment to the TPU_ Pillow Lock for Aeros pillow (sold seperately)_ Multi-functional, high flow-rate valveExkin Platinum; fabric is very lightweight, quiet non-woven fabric, which reflects radiant heat loss back to the user._THERMOLITE; HL-1 high loft insulation uses a unique 3D crimp of hollow-core and solid fibres, for excellent lightweight warmth with superior durability. Rolled Size: Ø11 x 24cm_ R Value: 3.2