I bought Sennheiser HD 280 Pro for this reason. Am pretty happy with them so far (which is just a couple weeks). I had a pair of QC25s and while they were nice

I bought Sennheiser HD 280 Pro for this reason. Am pretty happy with them so far (which is just a couple weeks). I had a pair of QC25s and while they were nice, they did the worst at blocking out the noise I most wanted to block out.