High Density Polyethylene (HDPE) construction for cold retention; Wide-mouth screw-on caps for easy filling and cleaning; Flip-top spouts for easy pouring or sipping with no leaks; Capable of holding 42 ounces or 1.25 liters of your favorite beverage. Great for packaging other items such as a sport towel or an amenity kit. Made In The U.S.A.