Unlike most Alpinestars shoes these don’t tend to run small, I would say they are fairly accurate or maybe half a size small depending on where in the range of your size you fall. The main thing to note here is that the US sizes seem to be accurate, I wear a size 12 US and when I put on a pair of size 12 US they fit me as I would expect them to, but where things got weird is when looking at Alpinestar’s European conversion. Depending on the brand, usually a US Size 12 is a 46, 46.5 or 47 in European shoes, but for some reason Alpinestars has a US size 12 listed as a 45.5. So keep that in mind, had I gone with my typical European size, my shoes would have been too big. So again, get your usual US size and you should be fine.

Alpinestars Chrome Air Shoes
* Flex grooves on foot front offer enhanced levels of flex while walking
* Oil resistant dual rubber compound for optimized grip on unclean/slippery surfaces.
* TPU full length plate for protection and improved foot comfort
* Outsole has an asymmetric stud configuration which provides excellent levels of grip and high abrasion resistance
* Snug fit coupled with ample inner volume creates a shoe which offers exceptional all-round foot comfort
* The increased medial sole edge radius enables easy movement on the bike’s pegs
* Fore foot and rear foot bumpers for added stability, protection and durability
* Open cell PU polyurethane compound ensures high levels of breathability, thus reducing overheating when worn
* OrthoLite® technical insock for easy step in and enhanced comfort
* Open Cell PU removable
* Nubuck leather quarters on upper for feel, stability and enhanced levels of abrasion resistance
* Tongue has been designed to remain in position when riding for a snug, secure fit
* Asymmetric rubber layer on fore foot for additional durability in the gear shift area
* Internal EVA patch material between outer and inner materials reduces pressure on foot in the gear shift area for optimized levels of comfort
* Open cell PU foam ankle protector for additional protection