Founder of the Underpants Run in Kona, Online/Personal coaching and Event Management from the best in the sport. Paula Newby-Fraser, Paul Huddle, Heather Fuhr, Roch Frey and John Duke.

The Headsweats line includes washable, airlight, supremely wicking hats that now dominate the triathlon, rowing, adventure racing worlds. The success and a spirit of innovation at Headsweats, along with unsurpassed customer service, helped to establish Headsweats as the front runner in a very competitive cycling category.

HOKA ONE ONE® is the fastest growing premium running shoe brand in the world. Two life-long runners launched HOKA in 2009, after years spent handcrafting and shaping lightweight shoes with extra-thick midsoles. Initially embraced by ultrarunners because of their enhanced cushioning and inherent stability, HOKA now offers shoes for all types of athletes who enjoy the unique ride the shoes provide. For more information visit or follow @hokaoneone #hokaoneone.

Garmin designs, develops, manufactures and markets a diverse line of user-friendly handheld portable and fix-mounted products for the auto, mobile, outdoor, fitness, marine and aviation markets.

The Big Island’s first, best, and only running specialty store. At Big Island Running Company, our goal is to help you get the most out of your running.

Sick Custom Race Kits + Gear.

Wattie Ink. apparel is designed, tested and manufactured in our own factory in Southern California with the intent to inspire, motivate and challenge athletes to follow their dreams, take risks, and never give up. Wattie Ink. is a brand focused and committed to the sport of triathlon, its courageous athletes, and delivering them gear with the highest level of performance, style and quality.

Greenlayer is a manufacturer of race tees and  a retail collection of sustainable performance apparel designed for training, racing, and the endurance lifestyle. Weelevate your race experience and give you the best of both worlds. Soft, high performance race tees and a retail line has the comfort and functionality endurance athletes crave.

Wood Underwear. Underwear for men. Whether you put your Wood on in the morning to start your day, for an evening out or anything in between…you’ll get noticed. Wood fits. We planned it that way. Get Wood everyday.

LAVA 105
The official radio station of the Underpants run!

IRONMAN Foundation
The IRONMAN Foundation was established in 2003 as a way for IRONMAN to leave a legacy behind in communities where the IRONMAN events take place. The mission of the IRONMAN Foundation is: To leave the IRONMAN legacy through philanthropy, volunteerism and grant making by supporting various athletic community, education, health, human services and public benefit organizations around the world.

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