The SM5 helmet is the result of more than five years of intensive study, development and testing. Based on Alpinestars’ five decades of protection development, we scrutinized every possible aspect to engineer a helmet that is safe and thoughtfully designed to deliver optimal protection and comfort.
The SM5 features a polymer blend enhanced by varying degrees of thickness engineered to deliver the optimal combination of impact protection and is also light weight.
Five density EPS liner – The right density in the right area for enhanced impact absorption.
Integrated Collarbone protection – Features an engineered raised area with padding to effectively reduce the forces transmitted to the collarbone.
Patented visor release system – Allows visor to release in a crash with the correct pre-determined amount of force regardless of angle of impact.
Oblique impact protection – Inner and outer surfaces engineered to minimize effects of oblique impact. ULTRA-VENTILATED DESIGN Visor directs air into ports for enhanced airflow.
Also featuring a lightweight construction, for example a size Medium weighs 1260g – 2.77lbs. (ECE), 1370g – 3.02lbs. (DOT)