The Giro Aerohead MIPS II Helmet is a high-performance time trial helmet engineered to reduce aerodynamic drag while maintaining advanced protection, cooling, and precise fit adjustment. Designed using CFD modelling and virtual reality development, then proven in the wind tunnel with Team Visma riders including Tour de France winner Jonas Vingegaard, it delivers measurable aerodynamic efficiency alongside MIPS Air Node rotational impact protection. An oversized Zeiss Optics magnetic eye shield improves visibility and airflow management, while Giro s Wind Tunnel ventilation and Roc Loc 5 Air fit system work together to balance speed, comfort, and stability during sustained efforts.Key Features and Benefits:CFD- and VR-developed aerodynamic shell design: Computational fluid dynamics and virtual testing refine airflow behaviour across the helmet surface to minimise turbulence and drag. Reduced aerodynamic resistance helps conserve rider energy at high speeds, supporting sustained efficiency during time trials and triathlon efforts.Wind tunnel validation with elite riders: Real-world wind tunnel testing confirms aerodynamic performance under race conditions. Verified drag reduction provides confidence that performance gains translate beyond theory into consistent on-road speed advantages.MIPS Air Node rotational energy management system: A low-friction layer integrated into the padding allows controlled movement during angled impacts. This reduces rotational forces transferred to the head, improving impact energy management and increasing overall protection during crashes.Two-piece fused shell construction: A durable outer hard shell permanently bonded to a polycarbonate lower shell strengthens the helmet structure without unnecessary weight. This improves impact durability while maintaining efficiency for long efforts where weight balance matters.Magnetically attached Zeiss Optics eye shield: The oversized shield sits slightly away from the face to guide airflow across the brow area. Improved airflow reduces heat build-up while delivering wide, clear vision and stable optical performance at speed.Roc Loc 5 Air MIPS fit system: A micro-adjustable dial allows vertical positioning, tension adjustment, and fore-aft tuning with one hand. Precise adjustment improves helmet stability and pressure distribution, resulting in consistent comfort during extended racing efforts.Wind Tunnel ventilation with internal channelling: Active intake vents and internal exhaust channels direct cool air through the helmet while removing warm air. Continuous airflow regulation helps maintain temperature control and reduces heat accumulation during intense riding.IONIC+ silver-infused padding: Pure silver fibres provide permanent antimicrobial protection within the padding material. Reduced odour build-up keeps the helmet fresher over repeated use, lowering maintenance needs between rides.Aerodynamic efficiency matters most when sustained speed depends on conserving energy over long efforts. The Aerohead MIPS II achieves this through integrated airflow management rather than isolated design elements. The shell shape, shield positioning, internal airflow channels, and elevated fit architecture work together to manage air movement around and through the helmet. Stable positioning from the Roc Loc 5 Air system ensures aerodynamic alignment remains consistent, while cooling airflow helps maintain focus and physical control during prolonged high-output riding.If you want a helmet built around measurable aerodynamic performance, advanced protection technology, and precise fit adjustment, the Giro Aerohead MIPS II provides a refined solution developed with world-class racing input and validated testing.