1. ATTENTION PLEASE: Since the fabric is with some smell, it's natural. Don't worry, just wash it and dry it for a few days, the smell will disappear.
2. This short pants is made of neoprene, it makes you warm during swimming,diving, snorkeling, and also can be used for exercise, it helps you to sweat during exercise like fitness, running, yoga, cycling, jogging and workouts etc.