With a full 1.5-inches of foam, FlexMat Plus is the thickest, most-comfortable closed-cell mat available. It is highly versatile for stand-alone use and will increase warmth and puncture protection for inflatable mats. When layered underneath, FlexMat Plus’s R-value of 2.2 can boost a 3-season sleeping mat to 4-season efficiency. The folding form is quick to deploy and ensures a tidy load when attached to a backpack, bike or kayak. Features Extra thick 1.5 inches of foam for added insulation from the ground in cold conditions. Rapidly deployable Incredibly quick & easy to unfold and set up. Eco-friendly Made from high quality, eco-friendly IXPE foam. Highly versatile For standalone use or puncture protection and increased R-value of inflatable sleeping mats. R-Value 2.2 Temperature 32 °F Dimensions M: 72 x 20.5 x 1.5 in LW: 77.6 x 25.6 x 1.5 in Weight M: 16.9 oz LW: 22.8 oz Packed M: 6.0 x 20.5 x 7 in Includes Foam mat