The 64oz Thermos® Insulated Water Bottle keeps drinks cold for up to 12 hours with double-wall foam insulation. XL capacity is built for long days, outdoor workouts, hikes, and anyone who hates constant refills. BPA-free construction. Wide mouth for easy filling and cleaning. Specifications: 64oz capacity | Double-wall insulated | BPA-free | Keeps drinks cold 12 hours | Wide-mouth opening Shop all Thermos® drinkware , view best sellers , or add laser engraving .