Custom Tumblers & Travel Mugs, Perka Erie 16 oz Double Wall Stainless Steel Tumbler - 6hr Insulation, The Perka Erie 16 oz double wall stainless steel tumbler is vacuum sealed and has a flip-up spout cover. The unique bell-shaped tumbler is perfect for the office with its clean, executive look and will keep your iced coffee cold for 6 hours and your hot coffee hot for 6 hours. This tumbler is FDA Compliant & BPA Free. A portion of all proceeds is donated to Shelter to Soldier, a non-profit organization that rescues dogs to train as service animals for veterans in need. ... #KM6416 $17.05/each.