I pulled out My clip and some decks. The Bee, Split Spades, Smoke + Mirrors, Bicycle 125, Guardians, and Propaganda cards all fit as loose as the regular bicycle cards. The Sentinels fit nicer with the thick card case they have. Usually I give my clip a solid squeeze before I put a deck in. As loose as they seem to fit I have never had one fall out. If you travel they are like gold. Going from Phoenix to Seattle this spring the cards I had in my pocket looked like a funhouse mirror the first time it rained. But the next day they were just like normal. I hope this helps a little.
Terry