Designed to fit rectangular sleeping bags, the Kelty Galactic SI sleeping pad offers a comfortable night&';s sleep with 2.5 in. of self-inflating open-cell foam. Features: Self-inflating sleeping pad with double brass valve This pad has an R-value of 8.4, which makes it best for adventures in extreme cold conditions; it provides high levels of insulation from ground temperature 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 2.5 in. thickness offers comfort Carry sack included Shaped to pair well with rectangular sleeping bags Technical Specs: Best Use Camping Sleeping Pad Type Self-inflating Sleeping Pad Shape Rectangular Insulated Yes Insulation Type Open-cell Foam R-Value 8.4 Stuff Sack Included Yes Packed Size 8.5 x 25 inches Sleeping Capacity 1-person Pad Thickness (in.) 2.5 inches Dimensions 78 x 25 x 2.5 inches Weight 4 lbs. 5 oz. Gender Unisex