The Strictly Solid Collection (Mid Calf) Premium Vector Protesters enraged crowd of people silhouette. Nine (9) Pairs of Cotton Mid Calf Dress Socks The Ultimate Foundation for Your Daily Wardrobe. Stop settling for low quality socks that lose their shape and slide down. The Strictly Solid Collection provides nine pairs of essential mid calf dress socks built on a single promise: they stay up These mid calf dress socks feature various designs to go with any formal or casual outfits. PH Socks are made with soft, breathable cotton to keep your feet dry and comfortable year round. Designed to stay up all day.