Breather Fit is the first and only patented technology of its kind, and is based on almost 4 decades of clinical experience. Respiratory muscle training (RMT) is a scientifically proven method to increase muscle strength and performance capacity of your respiratory system. This will improve oxygen supply to all muscle groups, and delay time to fatigue. Breather Fit is suitable for all athletic disciplines, and improves performance at any level, from beginner to elite athlete.