Invented by Clayton Jacobsen II, Jet Skis were the first of their kind. The Japanese owned Kawasaki company became a pioneer in the industry and they were the first to release and mass produce the vehicle. Later during the developmental stages, Kawasaki released the model JS-400 with 400cc two-stroke engines. This then lead to the eventual success and recognition of the new vehicle in the world of sports.

Depending on the model, a jet ski can accommodate from one to four people. Initially developed as a personal water craft, jet skiing has now evolved into an international sport and transportation vehicle.

The single-person model initialized the sport's popularity which later caused manufactures to mass produce similar water craft to cater the growing market.

Originally, the design was meant for crouching and standing on a platform roughly located at the rear of the equipment. However, innovation caused newer models to provide the flexibility of varying positions through the use of engineered designs. Add to it the steering column that allows vertical and horizontal movements. All these added to the rider's freedom of movement and whenever necessary, wave actions.

The jet propulsion system, being the main reason why jet skis are called was the most innovative addition to personal water crafts. This happens when the water is driven into a tube attached in the craft and is then ejected in the rear, thus the jet effect.

This same tube in jet skis is also capable of moving horizontally from side to side, which helps a great deal during steering actions.

The power system of jet ski, being the ideal one for personal water crafts features safety and speed. External propellers can't be found so riders need not worry about this type of danger.

While jet skis have become the generic name for personal water crafts designed through following the general outlines and use of the first jet ski, it would still be good to note that Jet Ski is the trademark of what Kawasaki Heavy Industries, Ltd. produced some decades ago. The term Jet Ski is also commonly used for personal water craft versions that are equipped with hand poles, such as the stand up jet ski.