Ozark Trail 30 oz. double-wall, vacuum-sealed, stainless steel tumbler, personalized with first name. This travel tumbler is made with high-grade 18/8 stainless steel, and is double-walled and vacuum-sealed for maximum temperature control, so it's equally suited to sustaining the temperature of both hot and cold beverages. It features a durable, rust-proof, sweat-free design, and is BPA-free. Hand-wash only.