The NEMO Tensor Insulated Sleeping Pad is an ultralight sleeping pad for pampering yourself on the trail. Backpacking certainly has its tough times, but sleep should not be one of them. The Tensor brings you Spaceframe baffle construction with Thermal Mirror aluminized film for a warm sleep up and off the cold, hard ground of your chosen campsite. The 4.2 R-Value and 3" thickness helps you snuggle in for the night and get an appropriate amount of rest. Packing down to an 8"x3" size and weighing in at around one pound, your pack and back will appreciate it too when moving along the trails.