EXCLUSIVE AT NET-A-PORTER. Arch4 specializes in cashmere, so you can expect some of the softest styles around. Spun from the precious yarn, its 'Knightsbridge' sweater has a roomy fit and slouchy raglan sleeves. This anthracite version has been made exclusively for us. -- Anthracite cashmere - Slips on - 100% cashmere - Dry clean - Designer color: Carbon