YouTuber Queensized Mia, who wears a size 20, and her size 12 sister Aaliyah tried on the same Shein outfits. For their first look, the sisters modeled a matching two-piece sports set , available ...

You pick out a girls’ size 6 short-sleeved shirt and shorts for her and a boys’ size 6 short-sleeved shirt and shorts for him. His fits perfectly. Hers doesn’t even come close.

But Brandy Melville isn’t a specialty store for the girls who are so skinny they can’t find clothing at an average department store. Sizes 00, 0 and 2 can be found in most teen stores.