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Sea to Summit UltraLight SI Mat - Not Available

Click to enlarge image of Sea to Summit UltraLight SI Mat


Sea to Summit UltraLight SI Mat. Light and packable for minimalist fast hikes, the Ultralight Self-Inflating mats come in at 1 inch thick with the regular size weighing just over 1 lb. Sea to Summit kept the weight down by using a 30-D polyester and our Delta Core-V™ vertical coring which keeps body contact areas warmer while still offering great support and packability.

  • Constructed using Sea to Summit's Delta Core-V™ technique to minimize weight and bulk yet maximize warmth. Using pressure-mapping data to define the contact areas Sea to Summit created a “map” for their distinctive core pattern. This technique keeps body contact areas - shoulders, hips and feet - warmer because the core holes are smaller in those sections.
  • Features a patent-pending multi-functional valve. High flow rate for easy inflation; one-way deflation mode prevents re-inflating while packing up and fine-tuning bleed valve for customized comfort.
  • Lightweight 30D polyester with extrusion laminated TPU used on the top and the base.
  • Anti-slip silicone print on the top and bottom helps keep your mat in place.
  • Made with environmentally friendly polyurethane foam that is very lightweight yet still offers excellent memory and self-inflating performance.
  • Comes with a 30-Denier stuff sack and easy to use repair kit.
  • The Ultralight Series has an insulating R-value of 2.6.
  • R-value: 2.6
  • Dimensions: Regular - 72”x20”x1” (183x51x2.5cm), Large - 78”x25”x1’ (198x64x2.5 cm)
  • Weight: 1 lb 3 oz (550g), Large - 1 lb 9 oz (720g)


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