Crafted from stainless steel with proprietary triple insulation, this vacuum-sealed wonder cup just doesn’t quit. It keeps your beverages cold for 9+ hours and hot for 3. Stays cold even longer with drinks containing ice — even out in the sun! This tumblerr is not only shatterproof with a no-slip bottom and a drink-through lid, it is a glossy white color with the Spendthrift Silks on it. Have a drink for us!