what size is 1213 years boy

The search results provide different size charts for boys clothing, but none of them provide a specific size for a 1213-year-old boy. However, based on the available information, we can estimate that a 12-13-year-old boy would typically wear a size XL or 18/20, depending on his height and weight. Its important to note that sizing can vary between brands, so its always best to check the specific brands size chart and have the child try on the clothes before purchasing to ensure the best fit.