Cap by Herschel Supply Co, Domed crown, Eyelet vents, Signature embroidered logo tab, It's all in the details, Flat peak, Adjustable strap. 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 adapts to a new generation updating their bags with a modern fit, shape and feel.