Needless to say, the fit was perfect. I like the trim fit. Not sure if there is a difference between trim fit and slim fit.  I noticed that the style is heading towards or already at a tight look. Maybe because more and more people are getting fit or conscious of their look.  I have ordered the jacket and pants but have yet to review those.

ME:
I'm 5'8" 150 lbs.  32" Waist and 38" Chest.

VEST:
Small is perfectly fitted with the strap at midway.