The side plaque added in the pro version improves the protection of the cyclist and his aerodynamism adjustable nose pieces the shape and angle of the multi plane nosepiece can be adjusted to accommodate any nose bridge for a truly custom fit nose pads the hypoallergenic and durable nose pads can be tailored for a custom fit giving you additional control and comfort antifog treatment no fogging on your eyewear under any circumstance not only repels the fog that clouds your vision but is