different sizes. Some 25 gr some 32. The little ones are only 12 oz. The bigger ones are like 16.7 oz or something like that. They now make Monster Milk. You think Muscle Milk has allot of fat, check out Monster Milk. Good for the non natural bodybuilder as you need meals with atleast 15 gr. of fat for cell growth. It's also loaded with glutamine and BCAA's, but about 10 bucks more than Muscle Milk and taste just like a real milk shake, if that's a concern.