Customized Tumblers & Travel Mugs, 14 oz Urban Peak Trek Vacuum Camp Mug - Stainless Steel & Copper-lined, 18-8 Stainless Steel dual-walled construction Vacuum-insulated, Copper-lined deep draw liner maintains optimal drinking temperatures and provides 7X heat retention Lead-free vacuum seal Features a clear push-on, sip-through lid Powder-coated finish 1-year limited warranty ... #SL258PR $28.00/each.