This is my second pair of these half chaps. They zip from the top down the side, which is much easier than a zipper in the back. Comes in a huge variety of sizes, so you can get an almost custom fit. There is a stretch leather panel that breaks in. The advice that I got from a friend for my first pair was to get them tight enough that you need assistance to get them on the first 2 or 3 times. They then mold to your leg and give a great fit. I found that I am best in an inch taller and an inch less width that what I measured. The new half chaps fit like a glove now. Love 'em!