Why do you need to wear a wetsuit?In cold water, wetsuit can keep the body extra warm. The working principle of diving suits is that when water enters the clothes, and then leaves a thin layer of water on the body. Then the body keeps moving to generate heat, heating and keeping the body warm. At the same time, in open water, you can avoid being injured by marine organisms, and avoiding water pollution causing skin sensitivity. The wetsuits provide you a better protection.Notice of size chart:1. Height and weight are important reference factors in size selection. But please also pay attention to your chest and hip circumference.2. If you are tall and thin, you should choose the size according to your weight.3. Our wetsuits are designed to fit a little tight to provide maximum buoyancy and warmth for you. A well-fitted wetsuit should allow you to breathe normally and move with some strength but may feel slightly tightly. Just get used to it slowly.4. If you don't know how to choose the right size or have any other questions, please feel free to contact us for help.Tips: ①You may feel tight when you wear on the wetsuit at first time.This is necessary for them to provide warmth and buoyancy. Just get used to it slowly.②You may smell an odor when you received the wetsuit. Please don't worry, this smell won't harm your body, it's environmentally and harmless glue smell. All wetsuits have the smell. ③If you have any question such as how to choose suitable size/want to replace/return the wetsuit, please feel free to contact us.