Both of these bottles are in the color Black and have a capacity of 28 ounces.

The Pro Series bottle is designed with a leak-proof seal and a secure screw-on lid to ensure that your shake stays contained during vigorous shaking. It features a rounded base and a BlenderBall wire whisk that helps mix your ingredients smoothly and prevents clumps. The Pro Series bottle is made of durable Eastman Tritan plastic, which is BPA-free and dishwasher safe.

On the other hand, the Classic Shaker Bottle also comes in a sleek black color and offers a similar design. It includes the patented BlenderBall wire whisk for efficient mixing, and it has a secure flip-top lid to prevent spills. The Classic Shaker Bottle is made of high-quality materials that are both BPA-free and dishwasher safe.

Both the Pro Series and Classic Shaker Bottle options are suitable for protein shakes and pre-workout drinks. The 28-ounce capacity allows for a generous serving size, and the black color gives them a sleek and stylish appearance. Ultimately, the choice between the Pro Series and Classic Shaker Bottle depends on personal preference and specific needs.