Sea to Summit Ultra Light Matte ST81102 S.I. (Small)

Size: Total length 170 x width 51 x thickness 2.5cm/Small Storage size: φ13×26cm/Small Weight: 520g/Small R value (thermal resistance value): equivalent to 2.6 Accessories: Dedicated stuff sack The self-inflating mattress ``S.I. Mat'', newly added to the lineup, is a series that provides even more comfort with a different structure from the conventional air spring mat series. The Ultralight S.I. Mat is the lightest and most compact mattress in the S.I. series. While maintaining the cushioning and support in the areas where you need it, we have achieved a 20% weight reduction by cutting out the internal foam depending on the body area. The multi-functional, large-diameter valve, which is the biggest feature of the Sea to Summit Mat, makes it easy to inject and discharge air. Not only can you fine-tune the firmness with a single push, but you can also flip the check valve over when removing it to prevent air from entering again and fold it quickly and compactly. -BodyZone die-cut foam construction optimized to protect shoulders and hips from cold. Other areas are cut larger to reduce weight. ・Anti-slip print on the top and bottom to prevent the sleeping bag from slipping ・Double-layered multifunctional large-diameter valve ・Lightweight and compact 30D fabric