I think the size is a bit small. Please check the size chart in image 2. - The cotton material has antibacterial and deodorizing properties, gentle on children's skin. - It's moderately thick and can be worn all year round. It's enough on its own in spring and autumn. It can also be used as a countermeasure against air conditioning in summer, and as an inner layer in winter. Long sleeves, long pants 100% cotton