At 50 kmh youre braving the elements your senses all aroused boll has created 6th sense to take the intensity of your sensory cycling experience to new heights b max technology is applied to ergonomic designing so that the frames adjust perfectly to the racing position they extend the field of vision and protection towards the top of the face which can considerably enhance your performancefeatures b max extra large field of view b thin active design rx b clear lenses optical precision r