Coalition Spherical MTB Helmet

Giro redefines full-face MTB protection with the Coalition Spherical MTB Helmet.  A featherweight champion at just 800g (M/L) that refuses to compromise on safety. Spherical Technology™ with Mips® integration handles rotational forces, whilst Progressive Layering strategically deploys EPP and EPS foams to manage both high and low-speed impacts.

The patent-pending Halo System—combining Pebax® chinbar construction with elastomeric bushings—nearly doubles standard deflection performance. Engineered ventilation channels pair aggressive front intakes with rear exhausts for superior airflow, whilst DryCore™ padding and IONIC+™ odor control ensure all-day comfort. Adjustable cheek pads allow precision fitting. This is full-face protection redefined.

Key Features:

• HALO SYSTEM CHINBAR — The Halo System combines a chinbar with Pebax® (a material that is engineered to provide the perfect range of flex and rigidity) and elastomeric bushings that are integrated into the EPS to absorb and dissipate kinetic forces.
• SPHERICAL TECHNOLOGY — Spherical Technology's ball-and-socket design, powered by Mips®, helps redirect impact forces away from the brain by allowing the outer liner to rotate around the inner liner during a crash. It also eliminates contact with hard plastic or slip-planes against the skin.
• IONIC+® PADDING — Pure silver is the secret ingredient that gives IONIC+ ® the power to provide natural, permanent odor protection to keep your helmet feeling fresh.
• DIRECTIONAL SNAP SYSTEM — In case of emergency, cheek pads are easily removable without disturbing the riders head and neck position.
• OPTIMIZED FRONT INTAKE VENTS — Giro engineers designed precise placement and shape of intake vents to optimize cool air flowing over riders' heads.
• MAXIMIZED REAR EXHAUST VENTS — Our complex Wind Tunnel venting system allows hot air an easy escape route from the rear of the helmet.
• BREAKAWAY VISOR BOLTS — Tool-free breakaway visor bolts are engineered with an integrated Allen key receiver for easy removal and replacement in case of crash.
• FIDLOCK® MAGNETIC BUCKLE CLOSURE — The pinch-free one-handed Fidlock magnetic snap helmet buckle combines the advantages of two fastening concepts in a completely new way: Strong magnets make it easy to open and close, while a secure snap functionality ensures a continuous locking force.
• DRYCORE™ — The DryCore sweat management system utilizes an internal silicone bead to redirect moisture away from the rider's brow and eliminate the irritation of sweat dripping into the eyes.
• DEEP INTERNAL CHANNELLING — Combined with the massive vents, internal channelling forces air to flow over the scalp, providing remarkable cooling power.

Size Guide:

• S - 52 - 55.5 cm
• M - 55.5 - 59 cm
• L - 59 - 62.5 cm
• XL - 62.5 - 65 cm