Product Description Specifications:Application:RoadAir Circulation Vents:18Construction:Shell structure + MIPSClosure System:buckleFeatures:high-performance road bike helmetTri-Fix strap system offers superior comfort and easy, quick and even adjustmenttransport channels for sunglassesall-round shell made of precision-processed polycarbonate for longer durability, high-quality finishFS3 adjustment system at the back of the head for fitting the helmet to your head's shaperevised thinner strap with 10 mm width counteracts noise4D eyebrow cooling: gap between the helmet and the forehead, directs airflow into the internal air ducts at any speedadjustable helmet angle for adaptation to different eyewear modelsMIPS TechnologyTechnology:MIPS MIPS is the acronym for " Multi Directional Impact Protection System" and refers to a movable protective layer that is built into most Specialized helmets. This inlay is connected to the helmet via an elastomer and can glide in all directions by approx. 10 to 15 mm. This absorbs and reduces the rotational forces acting on the head during a fall. In the MIPS SL version of the S-Works Road and the Ambush helmets, Specialized also ensure that the MIPS layer does not have any disadvantages in terms of ventilation and weight. Size Guide:51 - 56 cm:S55 - 59 cm:M59 - 63 cm:LManufacturer Number:60124-14 Contents:1 x Manufacturer: Specialized Germany GmbH Hauptstraße 4 83607 Föching Germany www.specialized.com/contact-us