A slick design with ample venting metrsquos parabellum uses cutting edge technology to ensure maximum safety with minimal weight at just 284g medium the parabellum is the lightest in its class the latest safe t advanced occipital retention system allows micro tuning of the fit and gel 02 padding at the front remains cool comfortable and odour free whilst channelling sweat away from your eyes goggle and glasses fit with no interference and the visor is easily adjusted add our intellige