Engineered for convenience, our Light & Dark Blue Protein Shaker features a 100% leak-free lid, an ergonomic drinking spout, and a smart-shaker ball to effortlessly blend your preferred protein supplement into a smooth and silky post-workout drink. Made from durable stainless steel, it is odour-resistant and BPA-free, and it has double-wall vacuum insulation to keep your shakes at the perfect temperature for hours.. For portability, our Light & Dark Blue Shaker Bottle includes an integrated carry loop, and it has embossed internal markings to help you accurately measure your workout blend. Stylish, strong, and supersized to carry up to 735ml, this metal protein shaker is a post-workout essential for fitness enthusiasts.