Our 20 oz. Whistler Stainless Steel Tumbler is constructed with double-walled vacuum insulation to keep hot drinks hot, and cold drinks cold. It has a clear plastic snap-on, spill-resistant lid with a slide-top sipping area. Available in your choice of color and finish - powder coated in black or white, or smooth silver stainless steel - all of these colors provide an excellent showcase for your brand. CA Prop 65 compliant. BPA free. Meets FDA requirements. Customize with precision laser engraving that will etch your logo in stainless steel.