Melville is home to a multimillion-dollar sock business.

The zany footwear sold by "John's Crazy Socks" is unique, not only for its designs but also for the young entrepreneur who started the company

When it comes to selling socks, no one rocks like John Cronin. He's the co-founder of "John's Crazy Socks" in Melville.

Cronin has Down syndrome, and he says it never holds him back from pushing forward.

After graduating from high school, his search for a job ran into barriers. So, he decided to become his own boss.

His love for colorful socks launched him into his career by Dec. 2016, when “John’s Crazy Socks” was sold online.

For John, spreading happiness means putting his personal touch on every order, even including a handwritten thank you note and candy in every box sold.

Since its debut, the company has shipped 120,000 orders worldwide and racked up $4.4 million in revenue.

The company has created 35 jobs, 18 of which are filled by people with disabilities.

Every pair of socks sold generates a donation to various causes. John's Crazy Socks has raised $140,000 for charity so far.