In the swimming competition of the Sydney Olympics, Australian athlete Ian Thorpe wore a black one piece tight swimsuit, like a shark advancing in the blue waves, chopping waves and winning three gold medals in one go. His shark skin swimsuit also became famous in the swimming industry.

Shark skin swimsuit is a nickname given by people based on its appearance characteristics. In fact, it has a more pronounced name: Kuaishi, and its core technology is to imitate the skin of sharks. Biologists have found that the rough V-shaped folds on the surface of shark skin can greatly reduce the friction of water flow, making the water flow around the body more efficient and allowing sharks to swim quickly. The super stretchable fiber surface of Kuaishi is made entirely by imitating the surface of shark skin. In addition, this swimsuit fully integrates bionic principles: mimicking human tendons at the seams to provide power for athletes when paddling backwards; Imitate human skin on fabric, full of elasticity. Experiments have shown that fast skinned fibers can reduce water resistance by 3%, which has extraordinary significance in swimming competitions where the outcome can be determined in 1% of a second. Root cause: "Sharkskin" uses polyurethane fiber material that can increase buoyancy. In October 1999, the International Swimming Federation officially allowed athletes to wear fast leather to compete.

And people have been exploring for many years what swimsuits to wear to swim faster. The resistance encountered by swimmers in water is directly proportional to the density of the water, the frontal area of the swimmer, the coefficient of friction, and the square of the swimmer's speed. Therefore, reducing the frontal area and coefficient of friction is the key to designing low resistance swimsuits.