These tights were perfect for my 5-year-old. She's slender and 4-6 Years fit her perfectly. She's worn these for ballet every class and none of them have holes, stretch marks, or any other signs of wear. They are very high waist so I'm pretty confident that she can fit them for a long while. They're not thick, but they are the ideal level of lined that allows for flexibility while ensuring nice coverage. They feel high quality, the color is exactly as shown, and they are silky smooth. Overall, great pairs of tights at a great price point!