10. Most people understand how wet suits and vests keep you warm

Answer: B- False

Correct. We think most people know that wet suits are worn for warmth, but most people aren't completely clear on how they work.
Wet suits work by fitting close to the skin. A relatively small amount of water seeps in between the wet suit and the wearer's skin. The neoprene wet suit material is such a good insulator it keeps the heat from getting out and repels the surrounding, cooler water. Once the water has seeped in, it's full. More water doesn't enter unless the vest or suit fits poorly.