Designer fashion, Seoul fully created W Concept Cotton On the invisible brief in black ASOS Invisible Cotton Cotton Blend Full Brief Powder 71244 1381 Cotton Superior Cotton Brief Coal Grey 73085 162 HANRO Cotton Wool. A relaunch that improves on what has already convinced countless women around the world: The new, completely revised full briefs of the Invisible Cotton collection keep their promises. Very flat cut edges, invisible under clothing. Enjoy the comfortable waist and wonderfully smooth and light cotton blend under tight summer clothes and light fabrics!