The Giro Source MIPS Bike Helmet delivers rugged, trail-ready protection for riders who demand performance and comfort. Giro designed this helmet to combine advanced rotational force management, exceptional ventilation, and durable construction for all-day trail adventures. Its Roc Loc 5 fit system provides a secure, adjustable fit while Integrated Mips technology helps reduce rotational forces in impacts. The helmet features a moto-style adjustable screw-in visor and full lower Hardbody coverage for lasting durability. With 17 vents and deep internal channeling, the Source MIPS keeps riders cool and comfortable even on the most intense rides