I discovered Duality in July with one of their free Hiit & Flow classes, and I was blown away by what an awesome workout it was! There are many boutique fitness gyms in Denver, and I feel like I have tried them all through my Class Pass membership, but this one is truly unique and fantastic! Workouts are challenging and the instructors are all super friendly and encouraging. I especially love their Circuit classes as I never push myself that hard on my own!

Amanda Brian