At first I thought they were going to be way too tight. and I have skinny legs. So, while watching tv, I stretched them out for a while and then tried them on again. This time they slid on easily and they were very comfortable. I have a condition called Chondromalasia, and it helps to use the pads whenever I do yardwork or household chores that require being on the knees. Very happy with the purchase. Sales clerk most helpful!