The Therm-a-Rest Trail Lite Women's Self-Inflating Foam Camping Pad with WingLock Valve offers an outstanding combination of comfort, compactness, warmth and value making it a great all-around camping mattress. Die-cut foam reduces weight and bulk while self-inflation adds convenience appreciated by all at the end of the day. The women's model is constructed with extra warmth where it matters, boasting an R-value of 4.5 making it warm enough for winter camping (R-value measures the material's ability to insulate; the higher the R-value, the warmer the sleeping pad). The semi-rectangular shape increases sleep area and makes for better, gap-free mating with other rectangular air mattresses. The lightweight sleeping pad features the high-performance WingLock valve, allowing the pad to inflate three times faster thanks to a larger opening and one-way inflation. Like all Therm-a-Rest pads, the Trail Lite is made to ensure quality and minimize environmental impact. The Trail Lite includes a stuff sack to protect the pad when it's packed down. Women's Regular measures 66x20x1.5 inches inflated, packs to 11x6.1x6.1 inches, and weighs 1.56 pounds. Manufacturer's limited lifetime warranty. Made in the USA.