Bum bag by Eastpak, For those must-carry essentials, Plain design, When less is more, Adjustable body strap, Secure clasp fastening, Small logo detail, Zip closure, External pocket. Bag it up, pack it in with Eastpak's bum bags, backpacks and duffle bags. Made of tough stuff, theyre crafted from durable materials specifically designed for life outdoors and on the go.