Alpinestars SMX Plus black boots for sale in UK size 9/EU 43 allows you to step into your ride with confidence and style. Designed to provide optimal protection while riding, they are CE certified with a durable construction that can withstand years of use. With a sleek black finish, these boots look great with any motorcycle gear, and are perfect for riders who demand a combination of protection, durability and style in their riding footwear. Multilink control.