These were new in package but I washed them and they were too small for my 1.5 year old so I put the size as more of a 1-12 month range.

This vintage item is a set of six pairs of McDonald's socks designed for infants aged 1-6 months. Manufactured in the 1980s in Taiwan, these socks are brand new and have been washed. Featuring the iconic McDonald's logo, these collectible socks are a nostalgic piece of retro memorabilia from that era.