ALPINESTARS Supertech R Boots - Black/White/Red - US 7.5 / EU 41 2220021-123-41 Tires Titanium Double D retention system

Titanium Double D retention system

Developed with CFD simulations

Micro adjustable ratchet top closure stows tab end

which is used to open or close the vent* Air entering from this point is channeled towards the inner side of the shields

ALPINESTARS Supertech R Boots - Black/White/Red - US 7.5 / EU 41 2220021-123-41 Tires Titanium Double D retention systemSupertech R Boots Black White Red US 7. 5 EU 41 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