The best knee guard I have ever wore! They do their job extremely well and at the same time leaving you in a perfect comfort zone. I wore them for about the whole day to check if they easily slip off or if they feel uncomfortable. The truth is: nothing made me change my mind about them. Very comfy and well fitted. I also slammed on my knees to test how well they guard my knee and they performed super fine :):) Lastly, they are true to size (I wear medium).