The Active Top Kids bottle has a rotary slide valve control system, implemented for the first time on a SIGG bottle, which combines an intelligent flow rate. By turning the bottle top, the rotary slide valve system opens a small aperture to release pressure from drinks, avoiding a low flow or overflow. Completely opened, the rotary slide valve system facilitates an optimal flow cross section for immediate refreshment. All of this without having to tilt or lift the bottle due to the internal straw system that will always deliver your beverage. It has few components making it quick and easy to dismantle and reassemble, ensuring safe and hygienic cleaning. It is extremely light weight, durable and completely BPA and phthalate free.