The Large Bottle Sling will fit the 26oz. & 36oz. Rambler® Bottles. Rambler Bottle sold separately. Features The sturdy, flat-back structure lets the pouch comfortably rest against your body or bag — no more rolling en route. A durable, compression-molded base keeps your bottle upright. Easy clean Built-in joey pocket to stash the cash and credit cards Removable shoulder strap