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Fuel your workouts with our Brushed Steel Protein Shaker. It features double-wall insulation to keep your shakes perfectly chilled for hours, a smart-shaker ball to guarantee a lump-free mix every time, and a revolutionary easy-twist lid to ensure it never leaks in your gym bag.. Like all our protein bottles, our clear lacquered Stainless Steel Shaker offers a generous capacity of 735ml, making it one of the biggest metal protein shakers available today. It has a carry loop for portability, an ergonomic, spill-free spout, and a BPA-free brushed steel design. Use daily to blend your post-workout protein smoothies in style.