Located at 1320 N Main St #500, Rumble Boxing Keller is the right choice if you’re looking for a boutique gym. It is a boxing-inspired fitness boutique that combines the science of boxing with the transformative power of strength training. Each class is a 45-minute, high-octane 10 round fight with HIIT, metabolic conditioning, and the benefits of cardio in one seamless class. No two workouts are the same—so you'll never get bored—and the classes are beginner friendly so you can rumble at your own pace. No prior experience needed. You need to book to attend the activities.