O&A Olympia baby carrier is simplicity at its best! It is unlike anything on the market (because its patent-pending). Height adjusters can be found on the front of the carrier that allow for quick & easy adjustments as your baby grows. No need to guess what width seat your baby needs- the carrier does it for you so you will always have an ergonomic seat! An ultra light weight and supportive carrier for children 7-60 lbs.