It feels like permanent grit underneath my feet and I cannot stand it. Sometimes when the straps are too loose, I find that my toes grip the toe posts when I walk, trying to keep the shoes on my feet. I purchased this item a bit over a month ago. Microphone quality is really good. PLUS. The battery is terrible. It doesnt look like an extremely high-quality shoe but the price reflects that. I really like the cover to the charging port on this speaker. I have used it multiple times while working in the garage, outside hanging with friends, and on the beach with absolutely no problem hearing it from a distance. Turns out redheads have more wax production than a normal person so he constantly needs to clean out his ears.