1Effective slim arm, using SBR fabric, can effectively gather heat, accelerate fat burning, also prevent sweat accumulation, comfortable to wear. 2Humanized designs, using highquality hook & loop, you can adjust the compression degree of the arm according to your comfort level, and the pasting fabric will not pilling. 3Designed with a small pocket, can place small items when doing sports, very convenient. 4Stimulate sweat release and help slim arms. It can also help to protect your arm when you are doing sports. 5Suitable for running, fitness, sports, cycling, ice and snow sports, extreme challenge, hiking, etc.