The instructors at John's Gym aren't just passionate about the disciplines they teach, they're expert practitioners of them. Carey Huckaby, for instance, the trainer of all boxing hopefuls who walk in, is a multiple Texas Golden Gloves champion, whereas the leader of the kettlebell classes, Henry V. Marshall, is a World Kettlebell Lifting Amateur champion. These titleholders ply their trades in a gym that was originally designed for law enforcement and military personnel, but refrains from intimidation by providing programs for the whole family. Suspension training designed by U.S. Navy Seals complements kick-and-punch heavy Muay Thai kickboxing sessions, while cardio-kickboxing and Fit to the Core classes create more rounded fitness opportunities. To accommodate all these activities, John's Gym stocks a full boxing ring and MMA mat area, Hammer Strength free weights, and Precor cardio machines, as well as more than 30 kickboxing bags, rather than old luggage with "Kick Me" painted on it.