Odyssey 20 oz Stainless Steel/Polypropylene Travel Tumbler features stainless steel outer shell with black polypropylene inner lining, Clear plastic lid with sliding drink opening. Keeps beverages hot or cold for up to 3 hours. Non-slip base pad on bottom and tapered bottom fits cup holders. Hand wash only. BPA Free and FDA certified An economical alternative to our popular Belmont 20 oz. Tumbler.