Customer Feedback - "These are amazing. Never knew how much they would help me out. I use them all day without discomfort. I feel "solid" on every step. Fit tight but did a good job for pain relief. " Yes, these comments are the best gift for us. We are always fully engaged to really make some changes and solve the problem for you. Breathable, No stuffy and Itchy - Innovative three-dimensional knitting technology, high-elastic compression fabric, ihuan copper compression knee sleeves have excellent breathability and sweat absorption. NO TIGHT, NO ITCHY, NO SMELLY. You can wear our knee brace all day, your knee can breathe freely, and feel the just right compression, relieving pain immediately. They are always working for protection. Keep Active and No Slip - ihuan copper knee brace always stay in right place, with 65% Copper ion fiber, help accelerate blood flow and improve oxygen supply, relieve pain and swelling quickly, improving overall performance. Perfect choice for climbing, running, ball games, cycling, gym, etc. It helps you keep the best performance and maintain a good range of leg motion. Strong Knee Support and Protection - We use tens of thousands of consumer data samples, combined with research by experts in physiology, to design this ergonomic compression knee brace. 65% Copper ion fiber, Upgrade the X support structure, contribute to proper patella alignment, prevent and relieve pain. ihuan copper knee brace is helpful in recovery from injuries such as meniscus tears, ACL, arthritis, joint pain, etc. Notic to Customers!!! ihuan copper knee brace will provide more pressure to ensure effective support. But if the size is wrong, too big, you will lose the support. Too tight, they will cut off the circulation and roll down. We suggest customer don't choose the size based on own height and weight, please check the size chart and follow to do. But due to the differences in humans, some problems will still happen, please relax, we promise 100% REFUND IF YOU ARE NOT SATISFIED .