Inline skating is a sport that involves using inline skates, which typically have two to five polyurethane wheels arranged in a single line by a metal or plastic frame on the underside of a boot. The in-line design allows for greater speed and maneuverability than traditional roller skates. Inline skating can refer to a number of activities, including:

• Aggressive inline skating: a sub-discipline focused on the execution of tricks, involving specially modified inline skates that can accommodate grinds and jumping of large gaps.

• Artistic inline skating: performed using either quad or inline skates, and looks similar to its counterpart on ice.

• Inline speed skating: athletes use inline skates to race around tracks.

• Inline hockey: similar to ice hockey, players move around on a wooden or concrete surface wearing inline skates.

• Road skating: athletes use either inline or roller skates and ride on road courses.

• Roller soccer: an indoor sport where players play soccer while wearing inline skates.

Inline skating is commonly referred to as rollerblading, or just blading, due to the popular brand of inline skates, Rollerblade. There are different types of inline skates for different types of skating such as aggressive skating, speed skating, inline hockey, and artistic inline skating.