I bought these shoes primarily as indoor shoes. Comfortable with a soft sole. Feet breathe a little, no sweat accumulation. HOWEVER "I live in a rural area and have a gravel driveway. As others have pointed out, the cushion design on the soles absorbs a lot of pebbles. Every time I step into a gravel driveway, 2-3 pebbles are left in any shoe size 1/2". I don't like stepping barefoot on 1/2" pebbles. You should rename them Pebble Poluza. Wanted comfort but wouldn't buy back Pebble Poluza.