One of my favorite packs. Made by the US for south Vietnamese forces. Hence the smaller size. If you picture a baby Alice rucksack made out of cotton then you have a good idea of what it is. Does have a tab and strap for a shovel and integrated side straps for attaching shelter halves etc. Although most people seem to have removed them. These are usually seen being used by Marines since the Army was issuing the lightweight rucksack and tropical/jungle rucksack which are both larger.