I work in an office environment where there isn't a lot of people noise, generally, but lots of computer and fan noise.
I don't really care for noise-cancelling headphones because they make me dizzy (I tried a coworker's Bose QC 15 and felt dizzy).
IEMs are also out unless really comfy, since my ear canals tire from earplugs pretty quickly (I've tried those to focus at work too).
So I'm looking for stories or recommendations or anecdotal evidence for over-ear cans that are closed back and help cut down/isolate the background noise.
Comfort and sound isolation take precedence over audio quality, since I don't listen critically at work (that's not what they pay me for ;) ).
Thanks so much for the recommendations!