This product is amazing... After suffering from crippling shin splints for 10 years, I thought my days playing soccer were over. I had undergone multiple rounds of physical therapy, including the Graston technique, to no avail. I bought fancy running shoes that were supposed to help prevent shin splints, and I even had a doctor suggest I have my calves surgically 'extended' to (somehow) reduce my shin pain. Running would cause severe pain in both legs, so much so that it could hurt to walk afterward. I tried the Cho-Pat Shin Splint Compression Sleeve as a last resort, and to my surprise, the sleeve works like a charm. I have now been playing soccer for a few months and just came back from a week of hiking in the Rockies. I wear the sleeves on both legs every time I play soccer or hike, and I have little to no shin pain before, during, and after these activities. This product is amazing. It allows me to do what I love. The sleeve fits tightly. I am 6'2 and 185 lbs and use size medium. Make sure you follow the instructions and continue to wear it for 30-60 minutes after exercising. I give it 5 stars. No question.