Looking for versatile options to layer for really casual office
My office has a very casual dress code, most days I wear a polo/button down with jeans/chinos and something like a sport coat would look very out of place. We are now at the time of year where its 90F+ outside and like 65F in the office and I'm in and out of the building all day. Looking for ways to layer to be warm in the office but that I can remove when I have to go into the field. Typically I just rotate like 2 grey and navy crew neck sweatshirts but wanted to look into more interesting options.