I used this when my baby was about 1 to 2 months old. Because my baby was big, I didn't use it very often, so I think it's still in good condition. The Velcro is convenient, and I think you can go out cutely with just this one undershirt. Please understand that this is a casual inspection, but as far as I can see, there is a feeling of use from washing, but there are no stains and the condition is good. Regarding the yellow clothes, I have cut off the size tag, but it is size 50-60.