Eco Vessel BIGFOOT Black Shadow Triple Insulated 45 Oz Water Bottle - With Removable Strainer, Infuser, and Straw Lid TriMax Triple Insulation Technology. Keeps COLD 36 hours, HOT up to 8 Hours 18/8 premium stainless steel, No BPA, no phthalates, no liners. Dual use top - interchangeable with flip spout lid - wide opening for easy filling, small opening for easy drinking. Includes Straw Lid! Removable ice, tea, and fruit strainer and infuser Hand wash only