Halterneck Wool Blend VestMO&Co. Noir Women's Halterneck Wool Blend Vest This piece is part of the MO&Co. deluxe collection, a limited edition capsule based on the principles of excellence in design. This is a sophisticated yet stylish piece of clothing, made from a wool blend and expertly tailored with a classic cut and open back. Features an adjustable tie back for a custom fit. This backless vest lends itself beautifully to layering but looks equally striking worn solo.