Thanks to Ebene for this great knee guards to my mom. But, it a bit small for my mom this M size. If is L size bigger will more comfortable to her. It’s very tight, wear it at home is ok. If wearing with bicycle is not so comfortable. After few day tried, my mom said it is good for her knee just a bit tight and not comfortable. Overall can release her knee pain problems while walking. Hope can getting better solve her knee problems. She can cycling more as a mild exercise.