I bought one of those Tarp Sergeant's for $15 to tryout and so far I like it. I was carrying my stuff the same way but in a homemade setup and this works much better. I would carry my ID, debit card, credit card, insurance cards in a small nylon card holder inside my money that was folded once. Haven't carried a wallet in my back pocket for many years!
When I ordered I thought about getting two so I had a backup but wasn't sure how or if I would like it so I just ordered one. Now I see that the price went to $19 which still isn't bad but not as good as $15!

Thumbs up on this Tarp Sergeant's wallet!