Sea To Summit

Features

1. Delta Core technology removes 40% of the initial volume of the polyurethane foam core for minimal packed weight and size
2. Delta Core technology keeps the bottom surface of the polyurethane foam completely intact which ensures consistent warmth along the full length of the mattress
3. One-way inflation valve can be reversed and used to prevent air from being drawn back in, allowing you to roll the mat without fighting re-inflation as you go
4. This pad has an R-value of 4.2, which makes it best for adventures in cold weather; it provides considerable insulation from ground temperature
5. Most sleeping pads we sell range from 1.0 (good for warm weather) to 5.5+ (for use in extreme cold); the higher the R-value, the more insulated the pad