i went to a nike store the other day and there was a shoe (womens) that i glanced at and then went on. however, now that i think back, i want to know if it was a running shoe. it was fairly light and came in a few bright colors (purple, blue, yellow-maybe). what intrigued me was that it had a plastic meshy outer layer. i know it was $90, which was why i walked away. does anyone know what shoe it was and if it was a running shoe? thanks