Each one of our listings includes a detail description of the products where you can find the size info.
If you are ordering clothes:
All items include a size chart which you can access by scrolling the photos of the product.
To get an accurate size, we advise to find a similar item (one that fits great) in your child's closet, lay it flat, measure it in inches then match those measurements to the size chart provided on the listing photos.
For more information in regards to materials, and other specifications, please refer to the product description.