#html-body [data-pb-style=X8N52FU]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}The Sea to Summit Ultralight Self Inflating Mat, at just 1 inch thick and 520-550g is one of the lightest and most packable mats they offer. Weight is kept low by the Delta Core-V™ vertical core, removing foam from unecessary areas. These features improve packability and reduce wieght without comprimising comfort. For those that want to count the grams and still be comfortable this is the ideal mat for their pack. Details: - Utilizes Delta Core-V™ technology, which keeps body contact areas warmer while still offering great support and packability- Multi-function, patent-pending multi-function valve twists over to allow the mat to be rolled tightly without fighting re-inflation as you go- At 1 inch thick and an equivalent R-Value of 2.6, the Ultralight SI Mat delivers a great weight-to-warmth ratio for minimalist hikers Technical Specifications: - Construction: Delta Core-V™- Size: Small: 170 x 51 cm, Regular: 183 x 51 cm- Rolled Size: Small: ø13 x 26 cm, Regular: ø13.5 x 26 cm- R Value: 2.6- Shape: Mummy- Thickness: 2.5- Weight: Small: 520g, Regular: 550g Sea to Summit Ultralight Self Inflating Mat | Air Sleeping Mats | BananaFingers