These are knee pads that fasten with Velcro. They didn't fit my legs, so I used them once and then washed them in the washing machine. There are marks from the clothespins when I hung them to dry, I'm sorry... They are labeled as size L, but since they have Velcro, I think they are adjustable. The online shop listed them as free size. I have a cat at home. I will be very careful about cat hair, but please be aware if you have allergies. They will be shipped via Yu-Packet Post (anonymous shipping). *Returns are not accepted, so please purchase only if you are satisfied with the item.* Knee pads, knee pads, knee protectors