ALPINESTARS Supertech R Boots - Black/Red - US 9 / EU 43 2220021-1236-43 Street Metal™ Air Intake System Replacement Filter Creates a deep rumble that

Creates a deep rumble that improves the sound but keeps the noise down

further improving impact protection for the collarbones

Traditional lace closure system for easy

Made of special rubber material that is resistant to outdoor conditions and elevated temperatures

New Carbon Can Design Featuring: Carbon Fiber Sleeve with Carbon Fiber End Cap and aerospace grade titanium exhaust tubing

ALPINESTARS Supertech R Boots - Black/Red - US 9 / EU 43 2220021-1236-43 Street Metal™ Air Intake System Replacement Filter Creates a deep rumble thatAdvanced 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 heel and shin Outside entry exit has stretchable