The 26 oz IceShaker features a patented, noise-free twist on agitator that is designed to blend protein powders and work as a strainer to ensure a perfect drink every time. Constructed from premium, kitchen-grade stainless steel, the 26 oz. Stainless Steel Bottle will not absorb odors and is double wall vacuum insulated to keep your drinks cold for hours and prevent condensation from building up on the outside of the bottle. For easy measuring, the 26 oz. Shaker is equipped with internal measurement lines that lets you add the perfect amount of liquid to mix up any tasty concoction!