Cheek pads for Alpinestars Helmets. When selecting your replacement cheek pad set, please keep in mind that the same cheek pads can be used with all helmet sizes (for example, the cheek pad size M – is a regular size 30. If you want a tighter fit, then you can choose cheek pads with a size 35 or 40. If you want a looser fit, then you can choose cheek pads with size 25, 20 or 15. Suitable for Supertech S-R10