Leather is not a very flexible material , its heavy and the worse part it draws moisture like a sponge. Try shooting a round of sporting clay or golf in a leather jacket next time and judge for yourself. I like something that is light weight, breathable, flexible, water proof and shield from the wind. I find Gortex is the best material fits that description. Get yourself a pair of good chaps to put over jeans for the bottom half, something like the Folsom Tin-cloth, you will be glad you did.