The material of the sleeve is comfortable and breathable. You can use it any time of the day and feel good while wearing it. There are multiple ways of wearing the sleeve. The first way is on the upper part of your arm, as far as it goes. The second is with your elbow in the middle part of the sleeve. The third is with the sleeve starting from your elbow, going down your arm. You decide which area of your arm you want to use it on.