The event stepped off at 9 a.m. at Soldier Field.
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Funds raised through the Making Strides movement allow the American Cancer Society to serve breast cancer patients and their families where and when they need it most, even during a global pandemic.
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Making Strides Against Breast Cancer's pre-walk program was emceed by ABC7 Chicago's Roz Varon and Judy Hsu.
Tony Iannessa is an Illinois area board member of the American Cancer Society. His wife is a breast cancer survivor.
Roz Varon kicks off Making Strides Against Breast Cancer walk at Soldier Field
"We're here today because of the research that the American Cancer Society has done to fuel drugs like Keytruda, which was part of her chemo therapy package and ultimately saved her life," said Iannessa. "Keytruda is now a part of a starndard of care for women with breast cancer like my wife. Five years ago it was an experiment. It's incredible."
Making Strides Against Breast Cancer returns to Chicago's Soldier Field
To learn more about the Making Strides Against Breast Cancer event and how you can become involved, visit MakingStridesWalk.org/ChicagoIL