NSF Kaia Full Zip Hoodie in Taupe. - size S (also in XS) NSF Kaia Full Zip Hoodie in Taupe. - size S (also in XS) 100% cotton. Front zipper closure. Drawstring hood. Side slant pockets and back flap pockets. Ribbed cuffs. French terry fabric. Made in USA. NSF-WK71. 20321-IFT. 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.