These fit large, order a size smaller.  Highly recommend trying them on prior to ordering.  

Alpinestars Supertech R Boots

Almost every component of the Supertech R 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. Innovations derived using feedback from Alpinestars involvement in topflight racing include a newly redesigned front flex area, a redesigned rear bellow, a redesigned top gaiter, 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.

Features:

• Front flex area for improved impact abrasion resistance
• Redesigned rear bellow in stretch microfiber for improved front and back movement
• Redesigned top gaiter in microfiber material with TPU over injection
• Synthetic microfiber panel on medial side for enhanced abrasion resistance
• TPU shifter for increased protection on lower medial side
• TPU shin plate for greater impact absorption performance
• Replaceable shin slider
• TPU stretch panel design with zip for easier entry and exit, along with a more optimized fit Hook and loop closer secures the zipper pull in position
• Micro adjustable ratchet closure on boot top
• Replaceable co-injected TPU/aluminum toe
slider with simplified screw system
• Replaceable heel plate slider design
• Lightweight rubber compound sole
• Bio-mechanical inner bootie with TPU-reinforced
external toe area
• CE EN13634:2017