Originally launched in the 1970s, Holeproof Computer Socks are famous for being the sock that falls up, not downTheir unique design means that more Lycra is knitted into the lower leg, and less towards the top which helps 'push the sock up'They provide superior comfort and durability and are made from premium quality yarnsPerfect for business and casual wearFabric Content:Cotton, Nylon and ElastaneStyle Number:S1077