ALPINESTARS S-MX 2 Boots (EU 43 / US 9) (BLACK) Alpinestars has remained a leader in the motorcycle industry due to their passion and a constant pursuit to produce better products. Alpinestars S-MX 2 boots are a low cut street riding boot designed for maximum safety and comfort. Streamlined buckles with an adjustable strap allow the Alpinestars S-MX 2 boots to achieve a custom like fit for maximum comfort and control. Constructed with a side zipper and hook-and-loop closure make the Alpinestars S-MX 2 boots easy to take on and off. For maximum durability while riding the Alpinestars S-MX 2 boots have a heel guard detail and a replaceable TPY toe sliders.