Met manta helmetthe manta helmet from met is a high performance helmet which provides incomparable performance in the wind tunnel by saving 10 watts at 50kmh compared to other similar road helmets a safe t advanced fit system is put in place which provides the best weight and comfort ratio breathability and comfort are extremely important thats why the manta features airlite straps which are 15 lighter than a standard helmet strap featuresouter shell construction in mouldinner shell s