The caveat about plus sizes also applies if you're small. When I went to buy jeans at El Corte Inglés, the sales assistant said that some sizes of Levi's (including my size) are unavailable in Europe. None of the European off-the-rack trousers they stocked fit me. I finally wound up buying Lee jeans and a pair of Dockers to get through the rest of my stay. I'm not sure what short Spaniards do when they need trousers.