Enjoying a shake on the go just got easier with this ultra-functional Takeya Tritan 24-oz. Protein Shaker. BPA-free double-wall Eastman Tritan material doesn't transfer flavor. This Tritan Protein Shaker includes a patented nylon agitator to perfectly blend protein powder, and convenient measurement markings allow you to get the mix just right. The universal extra-wide opening makes for easy filling, while the rounded internal bottom is designed to prevent powder trapping in crevices for hassle-free cleaning.