Buy USD Skates at Lucky Skates. Aggressive skating came to life in the 1990s and from the beginning, USD has been leading the sport. Formed in 1997 as a sub-brand of Powerslide, USD was originally named “Upside Down” because it was bold enough to turn the skate industry on its head and create the products needed to help grow the young sport of aggressive skating. As the brand developed and matured the name was changed to Universal Skate Design. USD was the first company focused on producing high-quality skates with replaceable and customizable parts. Now, 25 years later and USD still lead the aggressive skating industry, bringing skaters together, exposing people to the sport, and making the most advanced innovative products possible.