* Protective boot for motorcyclists (EN 13634:2017) * TPU ankle protection for biomechanical stability between calf and shin * TPU shift zone and strategically positioned TPU shin protector for superior impact and abrasion protection. These Alpinestars SMX-6 V3 boots offer advanced protection and comfort for motorcycle riders. They feature TPU ankle protection for enhanced stability and a TPU shift zone for superior impact and abrasion resistance.