Stainless Steel Protein Shaker Our amazing stainless steel protein shaker bottle is better than your average. A protein shaker, gym bottle, water bottle and blender bottle all in one! How it works The copper lining between the double walls of steel ensures your drink stays hot for 8 hours and cold for 12 hours. This makes it the only bottle/shaker you will ever need. Use it for your morning coffee, pre-workout, smoothie or protein shake, all in one! The unique capsule design means no protein powders get stuck, saving you money and preventing the build-up of bad smells. You also won’t need any mixing accessories, as our bottle uses centrifugal force to break down powder supplements and even soft fruit in a flash. Which means you get smooth protein shakes without lumps every time. Remember that it’s not dishwasher-safe but can be hand washed in seconds using just a little bit of water. Look cool, perform better #NoCorners!