Alpinestars Supertech M5 Action MX Helmet YCRF_bicycle_helmets This unprecedented level of comfort

This unprecedented level of comfort is achieved by combing a unique mixture of materials

Innovative hidden retention system

with vent plugs installed for cold weather use

providing a blend of superior mileage

it can be used as a tourniquet in emergencies

Alpinestars Supertech M5 Action MX Helmet YCRF_bicycle_helmets This unprecedented level of comfortThe all new SM5 helmet is the result of more than five years of intensive study, development and testing. We scrutinized every possible aspect to engineer a helmet that is safe and thoughtfully designed to deliver optimal protection and comfort. This lightweight helmet features a thermo injected shell incorporating a special polymer blend enhanced by varying degrees of thickness that is engineered to deliver the optimal combination of impact