Optimum Nutrition Opti Lock Shaker Abdominal A backlight increases visibility

A backlight increases visibility

And with zero artificial colours and zero synthetic sweeteners

- Contoured resistance lever provides tactile feedback for quick changes

- V-shaped push-down bar for Lat machine

Serious Mass provides you with the tools you need to pack on the pounds and help you develop the physique you’ve always wanted

Optimum Nutrition Opti Lock Shaker Abdominal A backlight increases visibilityDesigned to eliminate common shaker hassles, the Opti Lock Shaker by Optimum Nutrition offers a clean, secure, and premium mixing experience. Whether you're heading to the gym or mixing a post workout shake at home, this custom designed shaker helps prevent leaks and spills while keeping your supplement routine simple and effective. Built with functionality and consistency in mind, it pairs seamlessly with Optimum Nutritions leading range of powders,