The 10oz (350ml) wine glass shaped tumbler is made of high quality 18/10 stainless steel, BPA Free, Lead-Free, durable and unbreakable. Covered by tough and durable coating. In order to protect the coating, hand-wash is recommended.
Double-wall vacuum insulation technology keeps your beverages fresh, whether it is hot or cold. Set off on your refreshing picnic, hiking, camping, home, or office with your water, drinks, wine, or cocktail icy-cold for 7 hours or your coffee and tea scalding-hot for over 3 hours.
The insulated tumbler arrives with a sliding lid, providing extra insulation and splashproof (not leak-proof) protection.