Physical feelings: Boys who wear one-piece swimsuits for a whole day will feel that the tights are tightly attached to their bodies, making them more compact, highlighting their figure and comfortable to wear.

Sense of movement: Boys wear one-piece swimsuits for one day, which helps to keep the body dynamic and light, reduce the resistance of water when swimming, thus improving the swimming efficiency and making the feeling of sports on this day more comfortable.

Social feelings: boys wearing one-piece swimsuits for one day will make some parts of their bodies look more obvious, because tight fitting will make some people feel embarrassed.