How To Choose Size Put On - Please use the size chart in the image to choose your socks size, which will help improve the size matching rate. Note, do not use the usual size to choose the size. Follow the video to learn how to wear compression socks, otherwise, you will find them too tight to put on. If they still not fit due to other factors, or you are not satisfied with your purchase, please don't hesitate to get in touch with us. We will more than happy to assist you. Graduated Compression: Balanced and uniform compression of 20mmHg to 30mmHg Comfortable and dry during everyday activities. Suitable for running, hiking, biking, cycling, jogging, gym fitness, exercise, marathon, travel, shopping, golf, tennis.various sports activities. Also, as a practical choice for your friends and family. Improve Muscle Fatigue - Extraordinary design on sole, ankle, and calf area to avoid sliding, slipping or blistering, added pressure on arch shin parts to stimulate blood circulation, energize the feet and legs to recover quickly when you do intense sporting activities. Also, improve blood circulation and help relieve pain discomfort related to plantar fasciitis. Breathable and Wick Away - Crafted with a blend of 58 nylon, 24 polyester, and 18 spandex, breathable fabric features give you feed good in whole of a day! Moisture wicking properties rapidly dry in the air, keeps your legs dry, reducing the risk of blisters and maintaining all-day freshness Easy to wash, dries off quickly. Specialized Design Compression Socks - Graduated compression and fashion comfort socks with the latest 3D knitting technology, performance does make a difference in this field 360-degree stretch for greater flexibility and durability Superior stitching providing long-lasting usage.