One Boulder FitnessTrain like the stars, with your own personal trainer. The friendly ONE Boulder Fitness team of certified personal trainers are available for one-on-one training. They will help personalize your exercise to help you accomplish your fitness goals. Our trainers’ mission is to push you further than you ever thought possible. Rather than simply walk you through your workout, they will teach you how to keep safe throughout your workouts. You’ll enjoy your fitness momentum, for years to come. Discover this gem of a downtown Boulder gym today. At ONE Boulder Fitness, we make it easy to overcome your excuses and make the most of every day. “Our members always come first.”