This is a Flyers Helmet bag that was used in the US Military. Pilots use this bag to safely store helmets and other gear. The fleece lining protects sensitive items while they are being stored. The main compartment closes with a full length zipper. Also, there are two pockets in the main compartment for additional items. There are two pockets on the front with button snap closures. Also, there is a large flat pocket on the back. You can carry the bag with the sturdy carry handle on the top.