MADEWELL V-Neck Button-Front Wool Blend Sleeveless Sweater Button Down Vest. A cozy nod to a classic, this supersoft wool-blend sweater vest has a V-neckline and notched hem. With buttons along the front, you can layer it or wear it on its own. Slim fit. Crop length: designed to hit low on the ribcage and show a hint of skin. Body length from high point of shoulder: 17 1/2". Wool/polyamide/cotton.