re: People that wear vests. What is this?

OP never worn a vest and it shows. I’m sure he thought this was funny. When it’s a little colder and a jacket is overkill, yes a vest is practical. Warms the core of your body and your arms by extension. Sleeves are really mostly for wind blocking so doesn’t matter with a vest. Also not all vests are Patagonia finance bro types, the Barbour and orvis twill ones are nice as hell.