What's a good neck size?

[BoredPrince]

I saw that average is between 14 to 17 inches or 35 to 43 cm

I've been training for a few months, although not consistently, so my neck only grew half a cm

But it's still small, 35 cm so barely average

 

[Saint Casanova]

18 inches lean

 

[BoredPrince]

18 inches lean

Mirin, trained or genetics?