Slimwalk Compression Medical Lymphatic Socks Long Type BlackFeatures Recognized by Japan's general medical equipment, with high pressure Three stage pressure design, segmented forearm, calf, and heel pressure V shaped design on legs and abdomen to promote blood circulation Open toe design, comfortable and easy Promote blood circulation, improve leg edema, and prevent varicose veins Relieves leg fatigue and prevents cramps Applicable for home, out and work Medical level: HK CLASS II