Customized Tumblers & Travel Mugs, 20.9 oz Polar - Powder - Matte White - Vacuum Insulated & Stainless Steel, 20.9 oz double wall 18/8 stainless steel thermal tumbler with copper vacuum insulation, high polish accent, and clear acrylic push-on swivel lid and powder coated finish · patent pending - gift box included. Hand wash recommended. Do not microwave. ... #830571 $22.55/each.