stephfit_khsc: Best shaker bottle ever cause it's so convenient! I mix my pre workout in the cup then load the protein powder in the lid. I drink my C4 on the way to the gym and When I'm finished my workout I fill the cup with water, press the red button ( it ejects the mixer ( and in most shaker bottles it's the whisk) and shake. It mixes my protein in no time! #khfitbabes #khgirls #khfitfam #khsummerchallenge #W2D1