While it can be worn by 0-year-olds, it's recommended for around 1 year old and up. It's stretchy, so it can be worn for a long time even from 0 years old. I purchased this item new and unused on this site, but there were differences in the details, color, and size, so I am selling it without using it. Please check the photos when purchasing. There are no noticeable stains or scratches, but there is some fading. No price reduction due to shipping and fees.