Big Skinny Slimline.
https://www.amazon.com/gp/aw/d/B00HV...ltL&ref=plSrch
Got tired of leather being so thick and deteriorating so quickly. The new wallet with everything in it from the old leather wallet is thinner than the old one empty. I carry it in the front pocket. I haven't carried a wallet in my back pocket since I first started carrying a wallet in high school.
One downside to the wallet is that after a while the pockets will become lose and cards can slip out. It's not really an issue with the front horizontal pockets, but if you have anything in the vertical pockets behind them you can open your wallet and find your cards half way out. I've just switched from putting my wallet in my pocket spine first to open end first and its not an issue.