SM3 HELMET BLACK-GLOSS 2025 Metric pressure marking: 1

Metric pressure marking: 1

telling a tale of transformation and revival

350 SX-F 19-20

pipe silencer seal

Limited lifetime warranty

SM3 HELMET BLACK-GLOSS 2025 Metric pressure marking: 1The S M3 Helmet is engineered for MX, Enduro and Off road use featuring innovations and technologies optimized for ease of use, comfort and impact performance. Shell construction featuring a thermo injected shell incorporating a special polymer blend enhanced by varying degrees of thickness, engineered to deliver optimal combination of impact protection and light weight. Alpinestars patented innovative low friction coating is applied to inner part of