HW heavy weight canvas. Large main compartment. 2 side pockets with snap closure. Adjustable shoulder straps and backpack strap closure. Great for its comfort and lightweight. Can be worn as a backpack. Backpacks are often preferred to handbags for carrying heavy loads, because of the limited capacity to carry heavy weights for long periods of time in the hands. Also know and bookbag. Was a popular alternative pack for many soldiers during WW II who would otherwise be wearing larger and more bulkier bags. GI Government Issued style. Musette bag. Dimensions: 12" x 12" x 6" (inches).