These boots are comfortable, and you can't beat the price.  I was hesitant to order based on some of the other reviews, but if I wanted real leather boots, I wouldn't be looking at a pair that costs under $20 and expecting anything more.  That said, I own several pairs of side zip knee high boots, but found them to be very uncomfortable on my legs within a couple hours of wearing them.  I decided to look for a pull-on style for the comfort factor and these are perfect. They run true to size also. I am very happy with my purchase.  Also, received within a few days of purchase.  Thanks Amazon!