A Flyboard is a brand of hydroflighting device which supplies propulsion to drive the Flyboard into the air to perform a sport known as hydroflying.

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A Flyboard rider stands on a board connected by a long hose to a watercraft. Water is forced under pressure to a pair of boots with jet nozzles underneath which provide thrust for the rider to fly up to 15 m (49 ft) in the air or to dive headlong through the water down to 2.5 m (8 ft).

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The Flyboard is a bolt-on device that is attached to a personal water craft (PWC). It is designed so that the PWC follows behind the rider’s trail, allowing the rider multiple degrees of freedom, even allowing the rider to go underwater if they desire. The pilot on the Flyboard is secured in by bindings similar to a wakeboard and the rider is propelled from water jets below the device. The Flyboard is buoyant for safety, which also allows the rider to rest in the water between rides.The use of a personal flotation device and helmet is required by rental locations for safety purposes to protect against serious head trauma in the event of the rider impacting the PWC or stationary structures, and to protect the ears from damage and discomfort from impacts with the water.