I am selling a KiBi ergonomic carrier made in the Czech Republic. Designed for carrying children from 4 months to 3 years. It is possible to adjust the width of the backrest in the buttocks and legs. The waist belt can be pulled down to a minimum circumference of 56 cm and a maximum belt circumference of 135 cm.
Personally, the carrier was very comfortable for me, my child almost always fell asleep in it.
The straps are a bit faded, otherwise it is in very good condition.