the ventilated stretch‑mesh chassis with V‑strap stabilization maximizes airflow and fit

incorporating new mesh materials for improved stretch and breathability

The standard top pad is a size 15

shock‑absorbing flex zones

TPU shifter panel

s r10 crown pad gray RGroup_6525520 the ventilated stretch‑mesh chassis withReplacement crown pad set for Alpinestars S R10 Helmets, available in multiple sizes. Alpinestars official replacement parts. When selecting your crown pad, please keep in mind that the crown pad varies depending on the helmet size. In addition, the same crown pad can be used within sizes XS and S, or XL and XXL (for example, the crown pad size S is a regular size 10. If you want a tighter fit, then you can choose the crown pad with a size 15 or 20.