Optimum Nutrition Proven Shaker is made from high quality industrial BPA- & DEHP-free plastic. It is safe to use in micro, freezer and dishwasher. Thanks to the advanced anti-leak technology the lid and the cap is 100% guaranteed leak proof even for hot and ice-cold drinks.
Optimum Nutrition is one of the leading sport nutrition companies in the world and produces the best and the highest selling protein products in the international market. ON's strict ingredients selection, quality control, lab testing and manufacturing processes are all done for one reason: to provide you with the highest quality sports nutrition products available.