I ordered these slippers for my husband who likes the mules style the most. They are really well made and make a very robust impression. Sure, they're great indoors, but he likes to take them out onto a patio or paved driveway, and they feel very sturdy and durable. The sole is a bit stiff but comfortable enough. He's got his usual size, but they seem a bit big. They're okay if he's wearing socks. Hopefully they don't stretch too much. All in all a good solid slipper that he hopes will last a long time.