Jobst for Men 15-20, 20-30, 30-40 mmHg Ribbed Style Features: Attractive ribbed design with 3-D knit structure. Easy to wear with a comfortable band that keeps socks up without binding. Flat toe seams and a roomy toe section. Reinforced Heels for a longer lasting, durable product. Anti-bacterial additive reduces unpleasant sock odor. Special Moisture - Transport System with soft micro and multi-fiber yarns in the sole keeps feet dryer. Available Colors: Black, Navy, White(15-20 only), Khaki, Brown. Available in Knee High and Thigh High styles (Thigh High available only in Black or Khaki). Knee High socks available in both Closed Toe and Open Toe styles (Open Toe available only in Black).