Oh, I should have mentioned that while wearing cotton, or cotton-blend T-shirt under a leather shirt is no help, as it usually hold sweat in it and give the leather something else to stick to, wearing something like wool, or a wool synthetic blend, or one of the synthetic insulation underwear shirts will allow the leather shirt to come on and off easier. Just don't ask me to wear anything wool in the summer!
Most people make leather garments with the " slick " side out. Actually, if you want to blend into the background of the woods, and not give off " Shine " to give away your location, put the slick side of the hide on the INSIDE. The rough side will absorb light, not reflect it. If you are still, the scanning eye is just as likely to mistake you as a decaying log as a human.
An added benefit is that the slick side is easier to take off when you are sweaty in the heat of the summer. you can also wipe off the sweat and encrusted salts with a damp rag, easier, than if they get on the rough side of the hide. IN the winter, The slick side is COLDER, and in wind, and rain, the slick side sheds water, better than the rough side. I suspect that the small amount of air trapped in the rough or " suede" side of any hide acts as an insulator.
