With a self-inflating mechanism, this mat offers the convenience of effortless inflation to approximately 1.5" thick. Rest assured, even as a used item; it still delivers the comfort and cushioning you need for a restful sleep. Open the valve, and witness its resilient nature as it inflates, ready to support you through the night. This GI Self-Inflating Sleeping Mat is used. ♦ Manufactured of open cell foam with a waterproof durable shell that self inflates upon opening ♦ Self inflating sleeping pads are more comfortable and insulate you from the ground ♦ 20″ X 72 ” x 1″ ♦ Self inflating, Just open the valve Shell Material: 100% Nylon Self-inflating to approximately 1.5" thick Compact and lightweight (21" x 72" x 3/4" and 1 lb. 14oz) Genuine US Military Issue Made in USA NSN: 8465-01-393-6515 Compact and lightweight, this sleeping mat measures 21" x 72" x 3/4" and weighs a mere 1 lb. 14 oz. Its previous missions may have left their marks, but they have not compromised its ability to enhance your mobility and reduce your burden. Whether you are embarking on a new adventure or engaging in tactical operations, this sleeping mat is the epitome of portability and efficiency. This sleeping mat meets rigorous military specifications, ensuring its suitability for demanding conditions.