NSF Noemi Blouse in Navy. - size XS (also in ) NSF Noemi Blouse in Navy. - size XS (also in ) 100% cotton. Surplice neckline with button front closure. Intentionally bleached and destroyed areas throughout. NSF-WS238. 20071 WBFL. Based out of California, NSF has caught the eye of many. With their clean design and boyish charm, NSF is recognized for its relaxed, modern style looks.