From the seller

The award-winning Complete™ 6-in-1 Carrier’s ground-breaking convertible seat grows with your child, ensuring they always have the right support. Fold inward for a narrow seat that is newborn ready. As your child grows, expand the seat to ensure their hips and legs are comfortably and ergonomically supported well into the toddler years. Offered in the All Seasons, our most popular-selling style. This baby carrier features a zip-down front panel, revealing breathable mesh to increase airflow on warm days. Zip up for windbreaker like protection when it’s chilly. The Complete carrier can be used with children from 7 – 45lbs.