Noise cancelling headphones

[RDBx]

Currently travel a fair bit by train and bus and have some long haul flights coming up.

My headphones are just ones you get with a phone and are frankly rubbish in noisy environments.

Considering getting some noise cancelling headphones to improve matters.

I've had a look at options, I'm not willing to spend £100's so thinking of either eBay for second hand or refurbished QC 25's or perhaps a Chinese make pair new, from Amazon. Not fussed on wired or wireless, assume wired will be easier for flight AV system connection.

Couple of questions, do your ears get really hot with enclosed cans?
Are older Bose a safe ish buy second hand?
The Chinese brand pseudo cans actually decent, given they're all about 1/4 the price of the likes from Sony and Bose etc?

[RDBx]

Thanks for the recommendations, though as much a budget creep would be nice, those latest new Sony or new QC cans are not an option.

So still considering second hand QC 25's or Chinese brands from Amazon, mainly.