WCFreeze HD6XX - Cooling Gel Earpads for Sennheiser HD6XX, HD58X, HD600, HD650, HD660S, HD660S2, HD580, HD565 & More, Made by Wicked Cushions | Extra Comfortable and Cool | Black

Very comfortable and easy to install. The built-in foam pad blocking the driver is a much nicer solution than the stock foam that is only held in place with pressure.They are more comfortable than the stock pads. They're almost stiff when you first put them on, but as the pads warm up they become very soft and conform to your head. This could be the advertised cooling effect, though once they warm up they're about the same as any earpad.The design is similar in concept to the Yaxi HD 650 pads (mixed materials), though these are thicker and not quite as deep.They look fine, the grey geometric design doesn't look bad on my grey HD 650. I don't believe they would match the marble HD 600 or blue HD 6XX as nicely.Overall, a good alternative to more expensive aftermarket pads. They aren't exact replacements for the stock pads since they are very different in construction and do alter the sound quite a bit, but for those looking for increased comfort and to add a little pizazz to old headphones, these are a good buy.

They look good, but feel a bit hotter than default earpads after ten minutes of use, They can be kept clean way easier though, and also it was extremely easy to put them on. I like.

I’m not sure about “cooling” but they’re comfortably and sound good. I got a good deal on a pair of used Hd6xx and these brought them back to life.

WC is good quality, I've bought them before and haven't been disappointed yet.As others have mentioned, these definitely change the sound on a HD6XX due to the pleather inner wall, which increases bass, and the included driver foam seems to reduce treble slightly. As someone who enjoys the warmth of the HD6XX, these are both positives.Other positives include a deeper, firm-but-squishy pad (my ears no longer touch the driver!) and the cooling is effective. So far it seems to feel actively cool for around half an hour before it equalizes at skin temp or slightly cooler (currently 73°F inside, so mileage may vary).Between these features, it helps push the HD6XX in the "forget they're on my head" direction. I'm glad to get back to comfortably wearing them all day again.

they look great, easy to install and they are comfortable

fits the headset perfectly!

Looks cool but definitely has NO added benefit of having cooling gel pads. OEM pads run almost 2x as cool. Your ears will sweat with these ones.

Awesome product, great fit at a good price