Exped Ultra 6.5R LW

What is R-value? - R-value is a measure of thermal resistance. It indicates the efficiency of insulation by measuring its resistance to heat transfer, The higher the number, the slower the rate of heat transfer through an insulation, higher R-values help sleepers retain the heat their bodies generate Ultimate Comfort - Head-to-toe air chambers in sleeping pad fully support the body for an unrivaled night's sleep and increased durability Recycled 20 Denier ripstop polyester face fabric is soft to the touch and uses less water, energy & carbon during production. Welded baffles separate air chambers, creating a cushioned and stable sleep surface and preventing cold spots. Large inflate & deflate FlatValves provide industry-leading durability, reliability and intuitive performance.