Odyssey 30 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 2-3 hours. Non-slip base pad on bottom. Tapered bottom fits cup holders. Hand wash only. BPA Free and FDA certified. An economical alternative to our popular Belmont 30 oz. Tumbler: DTM-BL17.