Advances in the study of aerodynamic phenomena, skwal has a design and a silhouette that are the result of computational fluid dynamics simulation studies (cfd) in order to optimize both stability and soundproofing capacity at high speed. Unique lines of skwal are highlighted and \Skwal is thus one of the first helmet in the world to have this fully integrated technology.Visor with pinlock Maxvision standard. Weight only 1470 g (+/-). \Interior treated with activated charcoal bamboo for a triple effect: anti-bacterial, anti-sweat and hypoallergenic. \The seller is \This article can be shipped worldwide.