Rollerblade Hydrogen Wheels are fast and durable, using Rollerblade's highest-performing urethane. The core of the Hydrogen hub allows more flex, giving more power and rebound in every stride. Using the highest performing urethane from Rollerblade, it has a unique mix that is poured in the US.
**RUNNING COLOR CHANGE**
The urethane color is staying the same, but the graphics on the side may vary.
Graphics wear fairly quickly with skate time regardless.