Our powder coated tumblers are high-quality, durable, and BPA-free. Tumblers are seamlessly constructed of stainless steel and are powder coated for engraving customization and personalization. Available in a variety of colors and tree different sizes 20oz, 30oz and 32oz. These tumblers are "sweat-free" to keep any beverage toasty warm for up to 8 hours, or refreshingly cold for up to 24 hours.