Black Especially recommended for those who want to protect their baby from the heat and humidity that can build up in a baby carrier, such as babies born in the summer. It can be used comfortably throughout the year, not just in the hot summer. It is not only breathable but also highly durable. A handmade baby carrier storage cover is also included! For babies from 4 months old (when the neck is fully stable and weighs 5.5 kg or more) up to 20 kg. For newborns (weighing 3.2 kg) until the neck is fully stable, please use an Ergo insert (sold separately) together.