ALPINESTARS Supertech R Boots - Black/White/Red - US 10.5 / EU 45 2220021-123-45 Alpinestars Supertech R10 Chin vents are formed by

Chin vents are formed by two openings located at the front of the helmet at the sides of the shield lock mechanism

improves the effectiveness of the helmet in an impact

the shield opens and closes smoothly even with the much lower shield mount position

Wide heel counter with lateral ventilation extends to the ankle and is combined with a shock absorbing padded insert and self-molding ankle reinforcement

as well as actively circulates over and around the rider's head through a series of channels and then gets extracted out the back of the helmet

ALPINESTARS Supertech R Boots - Black/White/Red - US 10.5 / EU 45 2220021-123-45 Alpinestars Supertech R10 Chin vents are formed bySupertech R Boots Black White Red US 10. 5 EU 45 Advanced microfiber upper construction for lightweight high performance protection and superb levels of flexibility, Front flex area is constructed with a soft microfiber for improve abrasion resistance and natural forwards and backwards movement , TPU for breathability and airflow, Flexible accordion microfiber on Achilles gives enhanced natural movement , Strategically positioned ventilation area in