New Xendurance Blender Bottle Prostack. Featuring Twist n’ Lock. Two fully independent jars for storage. Pill organizer locks into jar lid to save space. 22-oz. capacity cup. Load up the Prostack then go crush your training session for the day. Follow the link in our bio or story and add this to your next order. #xendurance #xenduranceprotein #fuel5 #omega+D3 #letsgo #extremeendurance