If you work in an office with a dress code, chances are you enjoy the benefits of bone-chilling corporate air conditioning during the hottest hours of the day (if not, put on some shorts—or even a skirt). But even if your place of business is a frosty 68 degrees, that doesn’t mean you should roll up in the same rig you wore throughout the fall. For one, you have your lunch break and commute to contend with. For another, with heat waves growing in frequency and severity, you’ve got to be prepared for anything these days. Ignoring climate change just isn’t a good look. See more at GQ.