The wetsuit selection of the size and the principle of heat preservation.
The working principle of keeping the wetsuit warm: when you enter the water, the water will enter the wetsuit, and fill the gap between the skin and the wetsuit, that will be warm, and the formation of a thin film layer, the cold water is not easy to flow outside. The outer layer of the water film layer is the neoprene layer of the diving suit and it has good warm insulation performance, blocking heat transfer to the cold water outside the wetsuit, neoprene material is thicker, the better the performance, relatively more easy to keep the body warm.
Tight wetsuit, because very close to the body, causes little water in the interior, and heated by the body, that is not easy to flow out, it is easy to keep the body warm. The loose wetsuit, because the larger gap between the wetsuit and the body, that will bring a lot of water into the inside of the wetsuit, which will make the wearer consume more body heat to heat it, the middle gap will make the water in the wetsuit and the external cold water flow continuously, so that the body will lose heat continuously.
For the wearer: the right wetsuit should be tight (but not too tight, too tight will cause breathing difficulties and acute heart failure), Traditionally, the right wetsuit size should be one size smaller than that of the ordinary clothes. The loose wetsuit is an incorrect choice, inappropriate wetsuit is not easy to keep the body warm even though the thickness is increased. The thinner but tight wetsuit keeps the body warmer than the thicker and big wetsuit.