Alpinestars S-M3 Radium Gray Black Yellow FL Matt

Alpinestars S-M3 Radium Gray Black Yellow Fluo Matt - High-Tech Motocross Helmet with Bright Matte Finish

A striking matte look, advanced safety and studied ventilation: the S-M3 Radium is ready to accompany you on any terrain.

The Alpinestars S-M3 Radium Gray Black Yellow Fluo Matt helmet is designed for off-road riders looking for uncompromising performance, comfort and style. Perfect for MX, enduro and all off-road activities, it features Alpinestars' latest technical innovations in an aggressive matte-finish design combining gray, black and fluorescent yellow.

Its thermo-injected shell incorporates a blend of polymers with variable thicknesses, offering excellent shock absorption while keeping weight down (1430g ECE). Inside, the multi-density EPS padding, divided into 5 zones, manages energy dissipation with precision.

But this helmet doesn't stop there: it incorporates a patented low-friction inner liner to limit rotational forces during oblique impacts. Inspired by the natural functioning of the brain, this system further enhances your safety in the event of a fall.

As for ventilation, it features 10 air intakes, 7 extractors, and a visor designed to channel air inside. The visor automatically releases with a preset force on impact, reducing the strain on the back of your neck.

Thought to last, customizable with adaptable foams, and compatible with hydration systems, this S-M3 is more than a helmet: it's your new teammate on the track.

Key features

• Advanced shell: Multi-density thermo-injected polymer for optimum shock absorption.
• High-Performance EPS: 5 internal zones with 4 densities for targeted dissipation.
• Rotational Technology: patented anti-friction coating to limit oblique forces.
• Active Ventilation: 17 air channels for constant comfort during exercise.
• Matte Fluo finish: Bold, modern styling, visible on any terrain.

Technical specifications:

• Shell material: Thermo-injected polymer with variable thicknesses
• Screen type: Off-road helmet without screen
• Fastening system: Stainless steel double D chin strap
• Weight: 1430g (ECE) / 1460g (DOT)
• Approvals: ECE 2206 & DOT
• Number of outer shells: 3 sizes
• Internal EPS: 5 zones with 4 densities

Advantages :

• Enhanced safety even in oblique impacts, thanks to Alpinestars patented design.
• Customized comfort, with adaptable foams and recycled interior materials.
• Constant ventilation, ideal for intensive practice in high heat.

Care instructions:

Foams are hand-washable with mild soap. Do not wring. Leave to air dry. For the shell, use a soft, damp cloth. Always store your helmet in its cover to protect it between wrinkles.

Frequently asked questions :

Is the helmet compatible with all-terrain masks?
Yes, it's designed to fit all standard MX masks.

Is it possible to modify the interior fit?
Absolutely, the cheekpads and inner liner are interchangeable with models of different thicknesses.

Is a helmet bag supplied?
Generally yes, but it depends on the lot. Please check at the time of purchase.

Order the S-M3 Radium Gray Black Yellow Fluo Matt from iCasque now and ride with a helmet built for commitment, performance and style.