The concept is ingenious, yet simple. The jet pack draws water - or power - via a high-pressure hose tethered to a jet ski that runs in reverse. The jet ski sucks up water, pushing it at 1,000 gallons per minute (3,785 litres) along the 33-foot (10.1 metre) hose, where it then exits through twin nozzles fixed to jetpack, generating thrust.
Each unit starts at US$68,500 which includes a mandatory one-day training course. Certification for friends and family is an extra US$999.
The contraption is the brainchild of Raymond Li, a Chinese-born Canadian from St. John's, Newfoundland. In 2000 he first sketched out his Jetlev concept on a yellow Post-it note, but it wasn't until early 2012, after extensive research and some help from the National Research Council of Canada, that a commercial model was ready to go.
The manufacturer, Florida-based Jetlev, recently unveiled an upgraded 255 horse-power model for 2013.
The basic gear comes in white but for an extra US$5,000 buyers can have their pick of black, red, green, yellow or blue, and metallic silver. A sleek carbon fibre finish is an additional US$10,000.
