25oz gym sports single walled stainless steel insulated protein shaker bottle with mixing ball is ideal for mixing protein shakes, smoothies, and other drinks on the go. The 25oz capacity ensures you have enough to keep you hydrated during even the most intense workouts. The stainless steel construction helps to keep your drinks cold or hot for longer, and the insulated design prevents condensation from forming on the outside of the bottle. The mixing ball ensures that your drink is thoroughly mixed and free of any clumps. With its sleek design and durable construction, this protein shaker bottle is a must-have for any fitness enthusiast.