The EMS Route 66 foam sleeping pad is lightweight, durable, and guaranteed to help keep you warm so you can get a good night's sleep in any conditions.. . Made of lightweight and durable closed-cell foam. Can be used on its own or in conjunction with another sleeping pad for extra warmth and puncture protection. Weighs less than a pound. R-Value: 3. Made in Seattle, WA. 40818032305 19327200012 S14P0216