Nike Superrep Flex Sneakers Size 15

NWOT Size 15 If you are familiar with Nike, you know they typically run small. I added pictures of the measurements. There is no options on the site to select size 15 for shoes/sneakers for woman. My nephew wears a size 15 and they run tight on him. They get on his feet but you can see his toes are hitting up against the front. I do not know if these are men or woman sneakers. As you see on the tongue, that info is not indicated They are new, but may have some soils due to it being stored without a box. I have taken as mush pictures as I could to show any spotlight I think that may be a stain. I have since put them in individual plastic bags.