Calvin Klein Underwear Long Sleeve Open Hoodie in Grey. Size M, S, XS. 94% viscose 6% elastane. Made in Vietnam. Machine wash. Open front. Lightweight jersey fabric. Item not sold as a set. CKUD-WK11. QS6682. One of the most recognizable designer names in the world, Calvin Klein exudes signature sensuality and sexuality through classic styles and minimalist designs.