hella sick sweatshirt! medium is literally the perfect size, im 6 foot and it fits perfect, sleeve length is great and not baggy. all the ladies love this one. i got mine in white so it should be pretty interesting on keeping it clean but well worth it!
i dont know what you mean by 'medium run large' but what i do know is its a sweet sweatshirt. i got it in medium and im an average size guy, its a little loose but just the way i like it. getting complements left an right with it. hope this helped