The Ozark Trail Stainless Steel Vacuum Tumblers in Grey is the perfect addition to your drinkware collection. This set includes 20-ounce double-walled tumblers made with high-grade 18/8 stainless steel. These tumblers were created for maximum temperature control, so they can sustain your drink temperature whether hot or cold. The tumbler lid has a flip mechanism to open or close and was designed with durability in mind. tumblers are laser etched with a powder coat finish in grey. A silicone boot is provided to protect the bottom of your tumbler and create a stylish twist. For your convenience, these Ozark Trail tumblers are top-rack dishwasher safe, splash-proof and sweat-proof. Whether you are going on a weekend camping trip or for your morning commute, the Ozark Trail Vacuum Tumbler is perfect for you.