I wore these for one season, and they seem to be durably made, as they are still in good condition. These are slim-fit UNIQLO pants in size 110. They're cute even with the cuffs folded up, so I think they can be worn by children from 100cm to 110cm. There's a small fray that's only noticeable up close, which I've shown in the last photo. It's in an area where the fabric is layered and thick, so I don't think it will develop into a hole, but please refrain from purchasing if you are concerned. (These are easy to match with anything, and I liked the design and color so much that I bought a size 120 as well. Highly recommended!) - Brand: UNIQLO - Size: 110 - Color: Dark Blue, Navy - Design: Slim Fit Thank you for looking.