Training under Christian Dior as a teenager, Yves Saint Laurent originally focused on Haute Couture before turning to a prêt-à-porter line. For upgrading your smart casual looks, look no further than this Crew Jumper. Cut from a luxurious cashmere and silk blend, this minimalist inspired piece is detailed with ribbed trims for all day comfort. 60% Cashmere, 40% Silk, Crewneck, Ribbed Trims, Saint Laurent. Saint Laurent Men's Crew Neck Jumper Heather Grey