IVS (Integrated Ventilation System) ventilation with 5 large front vents and 2 rear extractors hollowed in the shell which direct air to the rider’s head

Wide vertical and horizontal view area for best visibility

2mm Insert for 28

com/support-docs/NPDLC/Fiches/RMS-6301010B

Extended back for greater coverage and comfort when in the riding position

Alpinestars - SM-5 Helmet - Rash import_date_2024-11-78 IVS (Integrated Ventilation System) ventilationThe 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