TOXIN-FREE CLASSY BOTTLE - LeafLife Tea Tumbler is made from 18/8 FDA approved food grade stainless steel. BPA and Toxin free. Outer bamboo shell looks marvellous, and environmentally acceptable.;LEAK PROOF - Our Tea Travel Mug is leak-proof with silicon cover attached to lid, liquid will not flow out when lid is on, ever.;FOR HOT or ICE TEA, COFFEE - Our Tea Mug 's Double Walled, Vacuum Insulated construction keeps your tea hot for up to 12 or cold for up to 24 hours. 100% Sweat/Condensation-free.;EASY TO CLEAN - Stainless Steel interior will not retain either color or taste of your previous brew or drink. It is easy to wash and maintain.;100% LIFETIME WARRANTY. Every step of the way, our dedicated associates work hard to ensure that the quality of our product surpasses your expectations. We care deeply about quality and sell only what we ourselves would be proud to own or give as a gift. Our tumblers are guaranteed to give 100% satisfaction in every way. Return it to us any time if it proves otherwise and we will give you a full refund promptly. No questions asked.