NSF Jaqui Turtleneck Tee in Olive. - size L (also in ) NSF Jaqui Turtleneck Tee in Olive. - size L (also in ) 100% cotton. Rib knit fabric. Raw cut edges. Asymmetrical hem. NSF-WS226. 2844 KRIB. 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.