Growler is a new addition to Störtebeker‘s "Eisbock" beer series. The design and product concept are innovative, distinctive, and sustainable! The bottle‘s shape was specifically developed for this product and in combination with its embossed logo allows a unique visual and haptic experience. Customers can only purchase a bottle at Hamburg‘s Elbphilharmonie and reuse it to get a refill at any time. The red flag has a secondary use as a metallic paper clip and improves customer retention. Lastly, the carrying handle is made from recycled cardboard and rubber bands secure the bottle for transport.