The TogetherBe Peekaru Ozone is a product that doesn't carry a baby in any shape or form, but what it does do is protect the baby from harmful UVA and UVB rays when out in the nice beautiful sunshine. It can fit over a variety of things: a carrier from 0 to 12 months of the baby's life, a car seat from 0 to 12 months, and a stroller from 0 to 24 months. It is a one size fits all product that is easy to put on. Not just for outside, the manufacturer recommends using the product inside cars to keep the infant protected while driving around.