I was sceptical at first. These socks are a bit thick so i thought in the summer heat with limited AC my feet would be sweaty after a full day in the office. But i was pleasantly surprised. They are very comfortable and supportive, and my feet didn't overheat. I actually bought these for my husband but decided to try them out after he commented on how he liked them and were nothing he'd had before. That's pretty much as big of a compliment you could get from a grumpy guy like him. We just wish you had these socks in black.