They have a plastic concavity in the sole, which is intended to aid the wearer in grinding on objects such as pipes, handrails and stone ledges.

Soap fell to legal vulnerabilities and was sold twice, eventually bringing the brand to Heeling Sports Limited.

Heeling Sports Limited, the company behind the shoes with a wheel in the sole known as Heelys, acquired Soap later that year.

In the late 1990s and early 2000s competing crews from across the Americas and Europe were releasing internet videos, spurring an online community of "Soapers."

A revival of sorts was noticed in early 2006 as more people were attracted to Soaping, and HSL responded by re-releasing their Express model in limited quantities.

Soap shoes continue to sluggishly regain popularity despite some difficulty due to Heelys using grind plates in addition to their wheels.

Within five years, Heelys stock had sunk down to $2.25 per share and was sold to Sequential Brand Group for $63.2 million, taking the soap and other grind shoe patents with it.