-Trek's fastest, most aerodynamic helmet will save big watts and shave crucial seconds -An excellent ventilation system makes this aero helmet surprisingly cool and comfortable -The Mips Air system is light, cool and designed to help reduce rotational forces -The single-lace BOA® fit system is fully adjustable to provide a custom, 360° fit -Rubberised sunglasses docking port provides secure and easy-to-use storage -Bevelled front edge improves field of view while riding on the hoods and in the drops -5-STAR Virginia Tech safety rating -Complies with US CPSC safety standards for bicycle helmets for people aged one and over
