The Giro Source MIPS Helmet is designed for the most rugged trails, built to provide superior safety and protection with MIPS technology for enhanced impact protection. This helmet combines advanced performance and protection in a rugged, trail-ready design that&';s built to handle whatever the mountain throws at you. Featuring deep coverage with aggressive ventilation from 17 vents coupled with deep internal channeling, the Source helps keep things cool even when the riding gets rowdy. The comfort and secure feel of the Roc Loc 5 MIPS fit system provides integrated brain protection, while the moto-style adjustable screw-in visor and full lower Hardbody durability give you a helmet that&';s equipped for serious fun and adventure. The integrated MIPS brain protection system reduces rotational forces while enhancing fit and comfort by combining the slip plane with the helmet&';s adjustable fit system. Giro&';s proprietary Wind Tunnel ventilation system combines active vents in the shell with internal exhaust channels that pull fresh, cool air over your head while forcing out heat and stale air. The In-Mold process permanently fuses a lightweight yet tough polycarbonate shell to the foam liner, eliminating adhesives and excess weight. The Hardbody design extends coverage to the inside of the helmet for enhanced durability where you need it most. Key Features Integrated MIPS Technology: Reduces rotational forces while enhancing fit and comfort through an integrated brain protection system 17-Vent Design: Deep internal channeling with Wind Tunnel ventilation keeps you cool during intense riding Adjustable Moto-Style Visor: Tool-free adjustment with indexed positions including three riding positions plus goggle storage