Carrying children in a kangaroo bag at the back during a hike or a day trip is more comfortable for many parents. This is why the company fillikid developed its back carrier, which allows parents to carry their child in the back, which is much more comfortable and healthier in the long term. Parents can place their child in the back carrier from the age at which they are able to sit upright without assistance. This model has an ergonomically shaped seat, the length of which can be adjusted to the size of the growing child. As the child not only grows taller but also wider, the width of the seat can also be adjusted. To prevent the child from falling out, this model is equipped with safety belts that can be easily fastened by the parents. There are also two shoulder straps and a chest strap for the parents.