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SIZE GUIDE
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UK customers: you may be liable for import VAT and duties for this product.
Almost every component of the Supertech R Vented Boot, Alpinestars definitive racing boot as worn by a roster of champions past and present, has undergone a rigorous program of upgrades to sharpen its performance features even further. Featuring extensive perforations throughout for maximum airflow, innovations derived using feedback from Alpinestars involvement in top flight racing include a newly redesigned front flex area, a redesigned rear bellow, a redesigned top gaitor, a new shifter and shin plate, a new shin slider and a new inner bootie, all of which enhance the comfort, protection and the performance of this boot to a new class-leading high.
• New front flex area for improved impact abrasion while also ensuring the natural front and back. • New front flex area increases ventilation and airflow for additional breathability. • Redesigned rear bellow in stretch microfiber for improved natural front and back movement. • Redesigned top gaiter in microfiber material with TPU over injection for enhanced prehensility. • New synthetic microfiber panel on medial side for enhanced abrasion resistance and improved feeling when in contact with the bike. • New TPU shifter for increased protection on lower medial side. • New TPU shin plate has been redesigned for greater impact absorption performance, thus improving abrasion resistance in a key area. • New replaceable shin slider for additional abrasion resistance. • New TPU stretch panel design with zip for an easier entry and exit and a closer, more optimized fit.
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Each brand has its own distinctive fit, which can vary in width and shape. Below is a small overview of the more popular brands and their general fit:
Not always. The idea that you should always choose a size larger for motorcycle boots is somewhat of a fable. It is actually important to look carefully at the size chart of the particular brand. Although there are some exceptions, the general rule is that you should be guided by the brand's size chart. However, it is important to note that the Sidi brand generally runs smaller. So if you choose Sidi motorcycle boots, it may be wise to go one size larger than your normal shoe size. If you fall between two sizes according to the size chart, we recommend choosing the larger size. It is better to have a little more room than to wear boots that are too tight, as tight boots can cause discomfort while riding.
There are roughly three main types of motorcycle boots: ventilated boots, non-ventilated/non-waterproof boots and waterproof boots. Each type of boot has its own specific characteristics and is suitable for different conditions.
On our website, most boots and shoes are listed in European sizes. However, there are some exceptions, such as Alpinestars sneakers/shoes and motocross boots, which are sold in American sizes.