Activa Sheer Therapy Men's Herringbone Pattern Casual Compression Socks 15-20 mmhg were developed to increase leg circulation and relieve foot swelling, leg swelling, aching legs, spider veins and varicose veins. The mild graduated compression of 15 to 20 mmHg also can help reduce leg fatigue. The Activa Sheer Therapy Herringbone Pattern Casual Compression Socks are designed for men and present a fashionable causal appearance. Constructed with microfiber cotton, these Men's Herringbone Pattern Casual Compression Socks are sheer, lightweight and less bulky than ordinary socks. The soft cotton fibers wick moisture from your skin to keep you cooler and dryer. Manufactured by Jobst under the brand name Activa, these Sheer Therapy Men's Casual Compression Socks have a comfortable, turned welt leg band that does not constrict. The reinforced foot and heal areas provide greater durability. Activa 15-20 mmHg Compression Mild Support Herringbone Pattern Men's Casual Socks are available in black or navy and are sold by pairs. Sizing for the Activa Sheer Therapy Men's Herringbone Pattern Casual Compression Socks is as follows: Small fits men's shoe size 7 or smaller; Medium fits men's shoe size 7 1/2 - 10; Large fits men's shoe size 10 1/2 - 12; X-Large fits men's shoe size 12 1/2 or larger.