

Charles J. Flanagan
Joined: Mar 23, 2026
Charles J. Flanagan is an ISSA Master Trainer, former national-level sprinter, and a featured model on America’s Next Top Model. With more than 20 years of experience in health, fitness, and performance coaching, he’s trained elite performers across industries—including Super Bowl champions, Grammy-nominated artists, and Hollywood talent. Known for his precision, presence, and purpose-driven philosophy, Charles is widely regarded as one of the most trusted voices in performance and longevity. As a writer, he’s contributed to Men’s Journal, Muscle & Fitness, and now Sports Illustrated, where he explores the intersection of human potential, wellness, and high performance.

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Sneak peek inside the newly-opened PUMA NITRO Lab in Los Angeles before the 2026 FIFA World Cup.
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Inside the invite-only event at the McDonald's in Sedona, Arizona, where Devin Booker and Nike handed out fresh sneakers.
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Official images, pricing, and release information for the Nike Book 2 x McDonald's "Sanddrift and Teal Nebula" colorway.
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Under Armour released Minnesota Vikings wide receiver Justin Jefferson's new "Bayou King" football cleats.