The Frank Thomas FT39SV Nautilus full-face motorcycle helmet is a road racing helmet with an ultra-lightweight polycarbonate shell with an aggressive aerodynamic design. A personalised ventilation system with sealable vents and exhausts provides optimum air circulation for superior comfort. The comfort lining is mesh lined to keep you fresh, is fully removable and washable, and features recesses for speakers (sold separately). The clear anti-scratch visor is quick-release for added convenience, and this also comes with a retractable internal sun visor to prevent sun glare. The sun visor is operated with an easy-access button at the side, which is easy to use with your gloves on! The micro-ratchet retention strap is safe and easily adjustable. Available in a choice of colours and designs. The Nautilus design is an exclusive design by Franzandesign! The Pinlock DKS002 insert fits this helmet.