ALPINESTARS SMX-S Boots - Black - US 11.5 / EU 46 224351710046 Oil Seals CNC-machined and PTFE coated

CNC-machined and PTFE coated

DOT compliant

rumbling exhaust note that won't have the neighbors up in arms Uses stock front headers

6061 CNC Header Manifold for optimized airflow

ALPINESTARS SMX-S Boots - Black - US 11.5 / EU 46 224351710046 Oil Seals CNC-machined and PTFE coatedDurable microfiber upper construction offering superb levels of flexibility and comfort Incorporating a waterproof and breathable membrane for high levels of comfort and weather performance TPU shin plate protector is ergonomically optimized for superior impact and abrasion resistance Lateral TPR injected ankle support construction offers optimized levels of protection and stability TPU double density ankles protectors are layered under the upper in