medium is US8 to US10.5 and large is US11 to US12 possibly US13 depending on boot.
perfect for an all mountain shred - like all PRO models - its SUPER Light
probably the best binding for a beginner wanting a softer flex,
BUCKLES
Injected Aluminum Buckles – Fast in, and fast out. Union aluminum is second-to-none.
HIGHBACK
Fusion Highbacks – Lateral tweakability in any temperature supplies a seamless connection with your boot.
check the review
https://www.youtube.com/watch?v=YYIH9nbFKmU