The Hydraflow Clay Capri stainless steel tumbler cup features top of the line triple wall vacuum insulation with premium copper lining for maximum insulation of warm or cold beverages. The sleek triple wall design keeps drinks cold for up to 12 hours and hot for up to 6 hours while preventing condensation and moisture from collecting on your tumbler. The reusable cup is BPA-free, made with premium 18/8 stainless steel material for enhanced durability while minimizing metallic taste. They also feature a dual lid for direct sipping or use with our included metal straw.