This is a 1984 U.S. Air Force helmet bag. It is in very used condition and has stains and spots. The zipper works and can be closed, but it is slowing down and needs to be maintained with wax. There is a handwritten number that may be an affiliation number. The lining is a little thin OD and the lining acts as a buffer to protect the helmet with a bonding process similar to a poncho liner. The bag has a large capacity compared to its size, so it can be used for everyday use or to carry some items. The bag is a very rare item these days, so please take advantage of this opportunity and enjoy it. This item is sold as a used item and is non-returnable. Please understand that this is a used item and cannot be returned.