J Crew Perfect Cashmere Crewneck Button-Front Cardigan Sweater S Navy When you think of cashmere, you think of J.Crew. We've spent decades fine-tuning our collection, sourcing the softest, longest-lasting fibers and perfecting every detail from fit to fabric to color. And this new cardigan is no exception, with an easy-to-layer fit and twelve carefully placed buttons. . . It's perfect in our eyes. 100% cashmere. Hand wash. Flat dry. 21.5 length. 20.5” measured flat and unstretched pit to pit.