Definitely size up. got a medium which is what my son normally wears but once he tried them on at home they were wayyyyyy too tight

I got these for my son based on the size chart. They are very tight on him. He can’t wear them because he can’t pull them up or down himself. Unfortunately we can’t return them because they’ve all been washed before first wear.

I have ordered twice a size 10 thinking they made a mistake they sent me size 10 xL again which is way to big for my son which wears regular size 10. Size 10 xl is for husky boys. Very misleading

Great boxers, my 3 and 6 year old love them and love the material.

Great buy very cute design, but missing front opening, that's why the 4 star rating.

Great quality exactly what I hoped for

Christmas presents for two 4 year olds...

The boys like these underwear

Soft and comfortable! We bought quite a few packs

Great fit. Grandson loves them !