This simple design will last a long time. I used it for my firstborn son and secondborn daughter, and they both looked cute in it without any issues. It's unisex. Although there's no size listed, I used it from when my newborn came home from the hospital until the 100th-day celebration (around 3 months old). I remember buying it at Babies "R" Us. As you can see in the third picture, there's an orange stain on the collar that didn't come out in the wash. Please purchase only if you understand and accept this.