Leather Koozie - Washington Not all Leather Koozies are the same! Ours are lined with neoprene insulation which is proven to keep drinks colder for longer. The insulation also keeps your can or bottle from sweating and limits condensation. Each Leather Koozie is hand stitched. Choose a design to be stamped on both sides. Comes on a hanging card insert with cool artwork. Pride and Craftsmanship are in every Koozie we make. Check them out! Keep that drink cold! Handmade in the USA