Designed with the reliable self-inflating technology you know and love paired with new, more sustainable fabric, the Trail ProLite keeps your pack light and your slumber deep. The self-inflating foam measures 2 inches (5 cm) and features our StrataCore construction, a design that provides the best warmth-to-weight ratio of any self-inflating foam construction. The 3.8 R-value allows you to stave off the cold during three-season pursuits. It also features the high-performance WingLock valve, which has three-times the airflow rate of a classic valve thanks to a larger opening and one-way inflation. Like all Therm-a-Rest pads, the Trail ProLite is made in market to ensure quality.