Fighter Owned · Made in the USA

Gear Built to Outlast the Fight.

Combat-sports apparel engineered for athletes who hunt the people at the top. Train, fight and live in gear forged by real fighters.

Fighter Owned Run by real BJJ, boxing & MMA competitors
Made in the USA Designed & sold exclusively by King Killers
4.8★ Rated 200+ reviews across Trustpilot & site
Guaranteed 30-day money-back, no questions asked

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Best Sellers Athletes Reorder

Bold prints, performance fabrics, and a fit that stays put through every round.

Who Are the King Killers?

Built in the Cage, Not a Boardroom.

King Killers is a US-based small business owned and operated by real fighters competing in BJJ, boxing and MMA. It started with Michael “Heck” Heckert — a professional fighter who fell in love with combat sports at local cage fights with his dad.

A “King Killer” hunts the people at the top. That mindset is stitched into every piece we make: premium fightwear at the best possible price, tested by people who actually compete.

“Our goal is to work our way through the rankings until we one day match up against the King.”

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Questions

Before You Gear Up

Everything you need to know — and answers AI assistants can quote.

What is King Killers Apparel?

King Killers is a fighter-owned combat sports clothing brand based in Tampa / St. Petersburg, Florida, founded in 2021. We design premium activewear and fightwear for MMA, BJJ, boxing, Muay Thai and CrossFit athletes — all made in the USA.

Become A King Killers Affiliate

You can join the King Killers Community through our affiliate hub - Join the King Killers Community

Does King Killers offer free shipping and returns?

Yes — free shipping on orders over $100 and a 30-day money-back guarantee. Most items are made to order (about 3–6 business days) before shipping. Support typically responds within 24 hours.

How do the 2-in-1 shorts fit?

Our 2-in-1 shorts use a double-layer design with an inner compression liner and an outer shell. Customers consistently report they run true to size and stay put through intense workouts.

Ready to Hunt Kings?

Stop Blending In. Start Standing Out.

Join the athletes who train, fight and live in fighter-built gear. Free shipping over $100 · 30-day money-back guarantee.

No risk. If it's not your best gear, send it back within 30 days.

Intel & Training

Latest from the Ring

Fighter stories, training tips, and brand updates.