When weight matters and so does a restful nights sleep, count on the Ascend Roller Roam UL Foam Sleeping Pad to deliver on both fronts! Youll barely notice its along for the ride until you get to camp and experience the supporting comfort of its IXPE closed-cell foam. This foam pad uses a hexagon pattern that traps body heat, keeping you warm on those cold mountain nights. When its time to hit the trail again, youll appreciate how quickly and easily the Ascend Roller Roam UL Foam Sleeping Pad rolls up again! R-value: 2.8. Cancer and Reproductive Harm- www.P65Warnings.ca.gov.