Made of quality thick leather. almost too stiff. hopefully they will get more flexible as they wear. They are warm and keep the cold out of places you don't want cold. If you're wearing over jeans order a size or two larger. Cons - seam hits your knee caps not a big deal but can be annoying. Also, I thought these came with a zipper down the outside of the legs, it doesn't. so you have to take off your boots if you to take them off. A couple of improvements I would have given them 5 stars