Theory Cable Yoke Pullover in Ivory. - size S (also in L, M, XS) Theory Cable Yoke Pullover in Ivory. - size S (also in L, M, XS) 90% Wool 10% Cashmere. Dry clean only. Pull-on styling. Ribbed cuffs and hem. Midweight knit fabric. THEO-WK294. P0911707. Theory is a visionary concept for modern intelligent fashion forward people. Founded in New York and made by the finest of fabrics, this makes the working everyday person feel powerful, ready to face their day.