Unisex Ankle Compression Foot Sleeve for Plantar Fasciitis Anti Fatigue Sock (Black) Designed to increase blood circulation and reduce swelling. Combats symptoms of Plantar Fasciitis Breathable fabric is thin, lightweight and comfortable, and can be worn discreetly under socks all day or alone at night. Soothes and relieves achy heels and feet. Keeps feet dry and comfortable Unisex and fits either foot: Perfect compression sleeve for travel, sports, work, or home This anti-fatigue foot sleeve with three levels of compression, and the targeted compression is just like a therapeutic foot massage that helps support your feet, stimulate circulation and reduce swelling.