Using them for airport indoor work and they have been very comfortable standing and walking with lots of airflow to stay cool. Not waterproof so have not used them outdoors in any rain or snow, and probably too cold for winter. Composite toe makes them lightweight but they do contain a steel sole for puncture resistance and therefore will set off any security metal detector. I like the athletic shoe look which can be worn outside of work with a pair of jeans without looking like you just walked off a job site. Would buy again.