The Vision Series Test is built for a high level of impact, protection and comfort. Strategicallyplaced vents in the inner and outer shells improve air flow, and the new reinforced rim HRS minimises movement between the solid peak and the certified steel or titanium bar grille, giving the Vision Series Test strong protection performance.The Vision Series Test model grille uses certified grade 5 titanium or high grade stainless steel. It also incorporates advanced manufacturing techniques to give greater protection.Masuris Halo Reinforcement System HRS is an extra strength helmet rim featured on every model in the Vision Series.