I've been wearing hiking boots - bike or no bike. Low-top breathable ones most of the time and mid-top waterproof ones if it's cold or wet out. These are ok where I work, where a range from dull sneakers to business casual leather sneakers to cheaper dress shoes are typical. But those types of shoes have soles that are too soft for my liking. We in the engineering office sometimes need to put on steel toed boots to go play in the factory, and some people just wear those all day, so having boots doesn't raise an eyebrow. In past summers I've worn Teva sandals but they're pretty soft and wide for cycling and I'm going to find an alternative this year.

I found these in my REI purchase history:

https://www.rei.com/product/781640/o...ing-shoes-mens

https://www.rei.com/product/828479/m...ing-boots-mens