Oakley MOD1 MIPS Poseidon

 BOA® 360 FIT SYSTEM: A fully adjustable design is engineered to help deliver an exact fit.
 

FIXED VENTILATION: Allows hot air to escape from the top of the helmet.
 

MIPS® INTEGRATION (optional): The MIPS® Brain Protection System is a helmet integrated, low friction layer designed to reduce rotational motion transferred to the brain during an impact.

 FIDLOCK® BUCKLE: Seamless magnetic functionality lets you fasten your helmet with gloves on.
 

REMOVABLE LINER/EARPADS: Allows for easy cleaning as it is machine washable, adaptable for various weather conditions, and provides freedom to wear the goggle strap underneath the helmet.
 

BRIM/GOGGLE VENTILATION: Allows hot air to flow unobstructed from the goggle through the brim ventilation for better anti-fog performance.

 ADULT: Small (51-55cm) / Medium (55-59cm) / Large (59-63cm) / Extra Large (61-65cm)