Get it soaking wet. Wear it in the shower.
so are you saying you like to wear leather in the shower????
my grandfather worked with leather his whole life and showed me a few tricks to softening leather jackets, pants, etc.... leather is simply skin from an animal and has some of the same properties as the human skin does and needs to be moisterized just like our own skin does. a leather jacket is no different. this is what I have done in the past:
1.) I always start out by cleaning the leather by dampening a clean cloth with water and adding saddle soap to it. I then get a sponge and rub it in all over the jacket and work it into a lather with a small circular motions. let it remain for a few minutes.
2.) dampen another clean cloth and wipe away the saddle soap immediately before it actually dries on the jacket. the last thing u want is dry soap on ur leather jacket as that would cause the leather to dry out and become cracked....
saddle soap is a cleaner
NOT a conditioner!
3.) buy some leather Honey conditioner (It works best)
Amazon.com: Leather Honey Leather Conditioner, the Best Leather Conditioner 8oz Bottle: Automotive and get a microfiber towel and wet the microfiber towel slightly with water and then apply the conditioner to the microfiber towel. rub in the conditioner with DEEP slow strokes to ensure it penetrates deeply.
4.) after the jacket is fully conditioned crumple it up into a ball and use ur thumbs to really penetrate the conditioner into the leather and into all the nooks and crannys.
5.) I then get a hair blow dryer and place it on MEDIUM and blow the jacket to get the leather slightly warm so the conditioner soaks into the leather easier. dont dry it out tho. just get it WARM.
6.) at this point I take two shoes and put socks around them and tie knots on the ends of the socks for each shoe. I then tie the two shoes together being about 6 inches from each other. I place the shoes and the jacket into the dryer on tumble dry with NO heat. I set it for about an hour.
7.) I repeat steps 3-5 again. you will notice a HUGE improvement in how soft the jacket is now.....