SM5 Sail Helmet YGroup_2512322 waterproofing

waterproofing

The main chassis construction is made from a blend of durable

Incorporating sturdy hard knuckle protection and a full synthetic suede palm for high levels of durability

Alpinestars’ innovative Nucleon PLASMA back protector offers high levels of ventilation and flexibility thanks to its structural composition that is highly adaptable and contours perfectly to your body and offers maximum comfort when riding your bike

Equipped with Jacquard underarm inserts for maximum ventilation

SM5 Sail Helmet YGroup_2512322 waterproofingThe SM5 helmet has been designed to provide MX riders with a helmet that is safe and purposefully designed to deliver optimal protection and comfort. The lightweight SM5 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 protection and light weight, while the five density EPS liner ensures the correct density in the