Inside Leg Length: 28" / Short - Label states III

Half Back Belt

Turnover Collar

then this will certainly do the trick

it has an interesting front fastening

East German Army NVA DDR Strichmuster / Strichtarn "Rain Drop" Camo Backpack Rucksack Waterproof Lining?:No Inside Leg Length: 28" /Genuine East German National People's Army Strichmuster Camo Rucksack Each rucksack measures approx 12" x 11" x 5"! At a glance Durable Cotton Canvas Material Excellent Grade 1 Condition Adjustable Nylon Webbing Straps Internal Strap Closure Completely Open Interior Choice of Waterproof Lining Cold War Warsaw Pact Eastern Bloc Kit Carry Handle Various Loops for Extra Additions Classic Soviet Communist Surplus Iconic East German Strichmuster Strichtarn