Make it, shake it and take it to go with the Contigo shake and go fit shaker bottles. This distinctly designed bottle features a rounded bottom and weighted shaker ball that enables for fine mixing and cleaning. Refuel on the go using the storage container, which holds up to two servings of protein powder and vitamins or stores the mixer ball when not in use for added convenience. You can blend any combination of liquids (protein powders, drink mixes, powdered supplements, water and other liquids). Tasteguard protection maintains tastes and resists odors.The wide mouth makes it easy to add scoops of powdered mixes, meal ingredients, liquids and even ice cubes. Ideal for pre-workout, workout, home exercise, office, running, sports and travel. The convenient volume markings make it easy to measure and track your content.