JORDAN Kids Mj Dri-Fit Sport Diamond Unisex Children's Black Shorts - 95D313-023

Hello, this product belongs to the children's group. Generally speaking, size M is suitable for children aged 10-12, and size L is suitable for children aged 12-14. If you share your child's height and weight, we can gladly help with a more accurate size recommendation. We wish you pleasant shopping.

Hello Dear Customer, According to the measurements of 12 years old and 45 kg, the estimated size M (10-12 Years) may be suitable. If a tighter fit is preferred, size S (8-10 Years) can be chosen as a lower size, if more comfortable use or growth margin is considered, size L (12-13 Years) can be preferred as a higher size. We wish you pleasant shopping.