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. 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) 1 lb 0.9 oz / 16.9 oz, (LW) 1 lb 6.8 oz / 22.8 oz Packed: (M) 6 x 20.5 x 7 in, (LW) 6.3 x 25.6 x 7 in Includes: Foam mat Materials: Closed-cell IXPE foam, DWR free