It depends on your definition of thin. Mous is a triple layer case so by definition cannot be as thin as single or double layer cases, but may be thinner than some other triple layer cases. It’s not a bad case by any means and the protection it provides is significant without feeling like you’ve hermetically sealed your phone, but when I used it I was always very aware of the added bulk.Is the Mous not considered thin? It looks very thin from the photos online, but honestly I wouldn't mind something a little thicker just to give myself some piece of mind.