Limar Ultralight MTB Bike Helmet The world's lightest helmet* (*Road version - size M for CE EN 1078 and AS/NZS 2063 standards) ULTRALIGHT double shell in-mould technology 22 airvents with integrated bugnet Micrometric sizing system with height adjustment (4 vertical positions) for ergonomic fitting Soft washable, antibacterial pads and removable visor