Is this vest warm enough for winter golf?

It is a lightweight performance layer, not an insulated vest. It works well over a polo on cool mornings or as a mid-layer under a jacket, but it will not replace a padded vest in cold weather.

Does it have pockets?

The listing does not describe pockets. The vest is shown as a full-zip performance layer with a stand collar, so check the item itself for pocket details before buying.

What is the fit like?

It is a men's performance cut, and the listed medium measures about 21.5 inches pit to pit and 26 inches top to bottom. That points to a regular, trim fit that layers over a polo without much bulk.

Can I wear it off the course?

Yes. The flannel finish and clean full-zip design work for casual wear, travel and commuting as well as golf.

How does it compare with Peter Millar's quarter-zip?

A quarter-zip covers the arms and adds warmth, while this vest keeps the arms free for a swing and layers easily under a jacket. Many golfers keep both for different conditions.