R-Flow System MT4 google with opening screenRevolution in the field ofenduro, the R-Flow System MT4 google with opening screen turns everyone upside down with a revolutionary approach. The R-Flow system allows the screen to be opened and therefore optimal ventilation whatever the conditions of use. Its effectiveness is particularly formidable in extreme enduro or it will no longer be necessary to put the mask on the back of the helmet in the very technical portions.Simply unclip your R-Flow System MT4 google with opening screen and benefit from optimal ventilation, while keeping protection in front of the eyes. The open mask is better than upside down!