These are USGI issue, often made by Therm-A-Rest, Vinyl Technologies, or similar vendors. They may vary from lot to lot that we get. Some are Olive Drab Green, and some are Foliage. All have the same NSN.
This self-inflating abrasion resistant ground insulator/sleeping pad features an OD green 100% oxford nylon outer shell bonded to a 1" thick lite urethane foam core and a plastic inflation valve. It measures approximately 20" wide x 72" long. This is the latest issue ground pad used by US and NATO forces. Contractors vary.