Backpack by Herschel Supply Co, For those must-carry essentials, Adjustable straps, Zip-top closure, External pocket, Herschel woven label, Packable design, Packs down into internal pocket, Can hold up to 24.5 litres. Herschel Supply Co produces quality built backpacks inspired by vintage mountaineering equipment, American heritage and world travel. With a passion for individuality and personal style, Herschel Supply Co have adapted their original designs to fit a new generation, bringing forth a collection of shoppers, holdalls and bumbags with a modern fit, shape and feel.