You'll definitely need the Large. The Medium would fit up to about 10 max if it's a shrinkage fit type.
17 Capita Kazu Kokubo Pro . 17 Korua Apollo . 17 Lib x Lost Mayhem Short Fat . 16 Never Summer Swift . 14 TJ Brand Retro Fish
17 Burton Malavita Wing . 16 Burton Genesis X
16 Flow Talon