The HIIT Bottle is a versatile protein bottle that is designed to be a permanent solution for conventional plastic protein shakers. It is vacuum sealed, double insulated, and made of stainless steel, which helps to maintain the temperature of the liquid inside the bottle. The bottle can hold 22 oz / 650ml liquid volume, making it perfect for carrying a sufficient amount of protein powder for a workout or a day out. The bottle is made of 100% BPA free food grade materials, which ensures that the liquid inside the bottle is safe for consumption and does not contain any harmful chemicals. The unique twist cap lock mechanism provides a secure seal to prevent any leakage or spills, making it easy to carry around without worrying about any mess. The bottle comes brand new sealed in a cardboard container, and the one you see was taken out of packaging so you can see what it looks like. It does fit perfectly inside your car's cup holder, making it easy to carry around while driving. In summary, the HIIT Bottle is a durable and long-lasting protein bottle that is perfect for carrying a sufficient amount of protein powder for a workout or a day out. It is made of 100% BPA free food grade materials, and the unique twist cap lock mechanism provides a secure seal to prevent any leakage or spills. The bottle is easy to carry around and fits perfectly inside your car's cup holder.