*The Alpinestars S-M5 is crafted with a lightweight thermoplastic outer shell in two sizes, it ensures impact resistance while optimizing comfort. The innovative visor design enhances airflow through dedicated ports. Stay hydrated easily with integrated hydration tube channels in the cheek pads. Its engineered surfaces minimize oblique impact effects, while the side shell and EPS foam combo shield the collarbone during crashes. Safety is paramount with the wider-than-required textile chin strap and multiple-density inner liner for optimal impact absorption. The emergency release system and removable cheek pads enhance convenience and comfort, while the patented visor release system guarantees controlled visor detachment.
Stay fresh with the SILVERPLUS treated anti-bacterial fabrics that wick moisture away, and enjoy a secure fit with stainless steel D-rings. With DOT and ECE certifications, the SM5 helmet ensures global safety standards are met. Maximized ventilation through multi-air inlets and exhaust ports provides superior heat transfer.*
*Features:*
* Impact resistant thermoplastic lightweight outer shell
* Two shell sizes
* Visor designed to direct air into ports for enhanced airflow
* Multi-air inlets and exhaust ports
* Integrated hydration tube channels through helmet’s cheek pads
* Inner and outer surfaces minimize the effects of oblique impacts
* Side shell couple with soft EPS foam prevents damage to collarbone in the event of a crash
* Soft textile chin strap is 26mm and is wider than certification requirements
* Multiple density inner liner to ensure the correct density in the correct area for enhanced impact absorption
* Emergency release system and removable cheek pads
* 3D contoured foam ensures rider comfort
* Patented visor release system
* Removable comfort liner with SILVERPLUS treated anti-bacterial fabrics
* Removable and washable Anti-microbial liner
* Stainless steel D-rings
* Medium weighs 1370g (DOT)
* Certified DOT and ECE homologation for use worldwide
Below is a size chart provided by Alpinestars for this product.
| Helmet Size | Head Measurement (inches) | Head Measurement (cm) |
|---|---|---|
| XS | 20.8 to 21.2 | 53 to 54 |
| Small | 21.6 to 22 | 55 to 56 |
| Medium | 22.4 to 22.8 | 57 to 58 |
| Large | 23.2 to 23.6 | 59 to 60 |
| XL | 24 to 24.4 | 61 to 62 |
| XXL | 24.8 to 25.2 | 63 to 64 |
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