NSF Kimberly Plaid Button Up in Red. - size S (also in ) NSF Kimberly Plaid Button Up in Red. - size S (also in ) Cotton blend. Front button closure. Chest pockets. Buttoned sleeves. NSF-WS216. 2438 REDT. 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.