?Insulated Stainless Steel: Sunwill 30oz tumbler is with Double-Wall vacuum technology to keep drinks hot for over 6 hours and cold for around 24 hours.
?Premium Material: The tumbler is made from high quality 18/8 304 food grade stainless steel. Lead free and durable. Rust-proof, easy wash and unbreakable.
?Superior Powder Coated Finish: Sweat proof, easy grip, the advanced technology prevents heat transfer to outer wall, condensation free and long lasting. Electro polished inside delivers elegant look. Designed for car cup holders.
?BPA Free Sliding Lid, Eco-friendly and Splash Proof: Extra sealed and the lid cover provide maximum splash-proof capability. Drink hole on the top for easy sipping. Straw friendly.
?Lifetime Warranty & 100% Satisfaction: If you have any questions, please contact our customer service and we will reply shortly. We are happy to provide 100% money back if you are not fully satisfied with the wine tumbler.