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. Features: Keeps beverages cold for 9 hours, hot for 3 hours Triple Insulated Vacuum sealed BPA & Lead Free Non-Slip Bottom Easy-Grip Flat Sides