(CBS) — Thousands of people walked along the lakefront Sunday morning to raise money to help premature babies.

Many families wore matching T-shirts with pictures of their preemies touting their tiny birth weights during the chilly but sunny March for Babies through Grant Park.

Tevin Coleman kicked off the 5k hosted by the March of Dimes.

The All-American running back who grew up in Tinley Park and played football at Oak Forest High School is expected to be a high draft pick later this week.

He was born two and a half months early and weighed only three and a half pounds.

His mother, Adlevia Moore-Coleman, calls her son a determined baby, saying he spent a month and a half in the hospital gaining weight so he was allowed to go home.

Tevin Coleman kicked off the 5k hosted by the March of Dimes. (Credit: Nancy Harty)

Tevin Coleman kicked off the 5k hosted by the March of Dimes.
(Credit: Nancy Harty)

Organizers say there were 20 other such walks across the state today – including in Naperville, Bourbonnais, and Peru.

The Grant Park one was the biggest, expecting to raise $1.5 million for research and prevention efforts for premature babies.