Alpinestars Supertech M10 Ampress Helmet The goal of the Alpinestars Supertech family of helmets was to develop the most advanced, protective and performance enhancing helmets available for riders worldwide. With the S-M10, Alpinestars Helmet Development team engineered a helmet that offers an ideal combination of excellent ventilation and exceptional comfort, resulting in a lightweight design without compromising safety or performance. The S-M10s design features a smooth, aesthetically pleasing and aerodynamic profile that is streamlined and free of external channels or features that could serve as load points during impact or compromise the overall integrity of the helmet. Its curved surface minimizes friction upon impact, facilitating deflection and optimizing energy transfer to better protect the riders head from direct force to the skull, as well as safeguarding the neck and spinal column. Features: Lightweight outer shell constructed from carbon fiber Four shell sizes Multiple density inner liner Equipped with Mips safety system Unique, patented, visor release system Patented A-Head fitting height and angle adjustment system Maximum ventilation with 19 intake and 5 exhaust ports Side shell shape coupled with soft EPP foam to prevent damage to collarbone in case of crash Removable, emergency release cheek pads with 3D contoured foam Removable anti-bacterial and hydrophobic comfort liner Hydration system compatibility E-Ject prepared Includes helmet bag, visor extension and winter accessory plug Adult Medium: 2.7lbs DOT and ECE 22.06 approved