Former 49ers quarterback Colin Kaepernick is set to publish his memoir, The Perilous Fight, on Sept. 15 through Hachette’s Legacy Lit imprint. The book arrives exactly ten years after he knelt during the national anthem, a gesture that sparked a league‑wide debate. Kaepernick says the project will provide the backstory he has long kept private. The narrative weaves personal anecdotes with the broader social movement that followed.

At the time of the protest, Kaepernick had already shifted from seated to kneeling, citing police violence and racial injustice. He explained that years of unanswered questions and the legacy of earlier activists drove the decision, not a spontaneous act. The gesture inspired some teammates, drew ire from owners and politicians, and reshaped NFL discourse. Its ripple effect still shapes player protests today.

Kaepernick, 38, logged six seasons with San Francisco, guiding the 49ers to the 2013 Super Bowl, a 34‑31 loss to Baltimore. Since his 2016 exit, he has authored a picture book, co‑written a graphic novel, and launched his own publishing imprint. The memoir cements his role as both athlete and activist, offering a definitive account of a decade‑long fight. Readers will see his 2012 playoff run.