Urbane O2 Insulated Travel Water Bottle,Keep Cold or Hot Stainless Steel Sport Water Bottle17 Ounce (Black) Double wall stainless steel vacuum insulation keeps beverages hot or cold for hours Durable and sanitary 18/8 stainless steel Built-in sipping design, button activated and perfect lock for secure travel, 17 Oz Compact design takes up minimal space while maximizing capacity Leak resistant,BPA and Phthalate free. A perfect gift for friends and family