Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Fog thicker than pea soup

Out of the box, and on to my head with great care not to touch the lenses. I rinsed off before swimming. After I entered the water I pulled them down they were already fogged up. By the time I got to the end of the 25 meter pool I could barely see where I was going. At the end of every lap I have to take them off, rinse them, and then put them back on. Yet, they fog up every time. I have to repeat after every lap.