It has enough room to hold bills like a regular adult wallet, but it's about 1/2 thick so my butt doesn't fall asleep on the leather filing cabinet in my pocket like some others. I really like the external access to my debit card and the ID window is perfect for my license. The two pockets hold a card, and the slot underneath can hold a couple of bonus grocery store cards. I like that. Reset all my other options. I can't even say I have it in my bag almost all the time. When you need a minimalist wallet with room for a few essentials. It is wonderful.