My third pair of Chacos but this pair is oddly way too large, I almost cant wear them. They have sturdy soles that are thick, without being too thick, or too heavy, and my feet feel very secure in them (dont you hate when you wear a flip flop, slipper, or sandal like this, and they seem to just fall off your feet with every step?! The feel was a little cheap. I grew up in FL, and Ive owned many pairs over the years. I was concerned at first thinking they were defective when they werent. bought for my mom she absolutely loves them! After miss placing them I knew it was time to get something that would help me keep up with them They are well made and comfortable to a certain extent, however, buy a size up. You can use it as a phone receiver with some interesting functions like pick-up, end, or even ignore an incoming call. t about sound quality and build quality, look elsewhere.