LS2 visors are built with 3D Optically Correct "A Class" Polycarbonate, a space-age polymer with high resistance to impact, that avoids distortion and offers maximum clarity. To ensure good protection the helmet must fit your head to perfection, special attention should be paid to the shell shape design and materials to minimize the effects of a possible impact. It is key to obtain a perfect fit to your head from outside to inside, as well as the shell, the configuration of the EPS liner, which should match closely the human head shape. LS2 helmets feature a Dynamic Flow-through Ventilation.Fully adjustable intake ports and vented EPS work with the rear spoiler and exhaust ports to create a constant, light flow of air helping to keep the rider cool and comfortable. XXS > XXL/ 3 shell. What is in the BOX. This applies to all to our products. Sign Up for our Newsletter. The item "LS2 FF320 STREEM EVO MOTORCYCLE BIKE ROAD FULL FACE TOURING SCOOTER HELMET" is in sale since Wednesday, July 25, 2018. This item is in the category "Vehicle Parts & Accessories\Clothing, Helmets & Protection\Helmets & Headwear\Helmets". The seller is "mybikesolutions" and is located in Bolton. This item can be shipped worldwide.