The first jacket is made of extremely thick steerhide. It stands up on its own, but is very supple. It feels similar to the thickness of the thickest buffalo I have ever felt, and possibly even thicker. The jacket weighs in at over 10 pounds. Its a combination of a highwayman and cheyenne with an extremely oversized collar. Both jackets are custom cut, but based on size 50. The second Jacket is my Aero B3 ANJ4 hybrid with an oversized collar and wind flap. I had this jacket entirely overlayed in Horsehide for durability and had Aero put on a zipper about 3 times the size of the traditional size. It ways in about about 9 pounds.