Colorful painted tumblers offer superior heat and ice retention. The double wall vacuum insulation and built-in gasket helps prevent heat transfer, so ice stays solid longer and your cup won't sweat. Extremely durable - constructed of kitchen-grade 18/8 stainless steel with a clear BPA-free lid. Blue Durable stainless steel Clear BPA-free lid | Camco Life is Better at the Campsite Insulated Tumbler in Blue