Smooth knit fully plain with no logos on it a truly classic design.

Approximate sizing as follows:
S – 36″ – 38″ 
M – 38″ – 40″ 
L – 40″ – 42″ 
XL – 42″ – 44″ 
2XL – 44″ – 46″
3XL – 46″ – 48″