Alpinestars S-MX 5 mens 9. The Alpinestars S-MX 5 Boots are an entry level sport boot that is perfect for street riding or the occasional track day. The SMX-5 boots incorporate Alpinestars expertise in footwear design and material know-how with a durable microfiber upper construction. This CE-Certified boot has double injected PU shields at the shin, calf, toe and heel for absorbing impact and further protection is provided on the inside with a dual injected panel. Air vents at the ankle, heel and toe provide airflow and the quick drying lining helps wick sweat. The Apinestars S MX 5 features a comfortable, huggable fit, safety performance and ease of adjustability. Excellent used condition motorcycle riding boots with just a few scuffs on the toes as you can see in pics. Size is Men’s 9 or EU size 43.