Miracle Anti-Fatigue Compression Socks (BlackAnti-fatigue socks Material: Nylon/lycra Works wonders on swollen muscles Reduces aches and prevents symptoms of varicose veins and spider veins Comes in black to easily match your wardrobe Thin and discreet Dimensions: 17.5 x 9 x 5.5cm Miracle Socks Anti-Fatigue Compression Socks (Unisex) Proven Effective Helps reduce swelling in legs and feet Graduated Compression: Improves circulation & helps reduce aches & swelling Massage as you move: Soothes aching legs and feet Relieves symptoms of varicose veins, Vein Therapy: Helps relieve symptoms of spider & varicose veins Perfect for being on your feet, sitting all day & traveling Knee high suitable for people of any age