What webbing/gear would I need to set up this Austrian Bundesheer bag? I assume it's a rucksack of some kind, but I'm unsure of what year or what it's purpose was. :
Austrian Military Surplus 45L Backpack O.D. New Old Stock - Etsy
Bundesheer Rucksack Neu, € 80,- (3500 Krems an der Donau) - willhaben