TRIPLE INSULATED VACUUM TECHNOLOGY - Sip in style with the travel cup that won't quit. Triple-walled stainless steel tumbler keeps drinks hot for 3 hours or cold for 9 hours. The thermos mug is great for coffee, tea or any drink to last you all morning | | CLEAR SHATTERPROOF LID - The travel cups transparent lid is shatterproof, BPA-free, and comes with a built-in sip cover slider, which is dishwasher safe so you can be sure your lid is clean and good to go for outdoor and home use | | LEAKPROOF DESIGN - Prevent spills and keep your drink at the perfect temperature on the go. With a spill-proof lid, there's no more spilling your drinks. It prevents air and liquid from escaping, allowing maximum temperature retention | | EASY-GRIP NON-SLIP CONSTRUCTION - The silicone base grip prevents your reusable coffee cup from slipping and sliding. Patented flat sides are easy to grip and hold. Non-sweat design means no condensation on hands and no heat transference with hot drinks.