SOULWITCooling-Gel Earpads Cushions Replacement for Sennheiser HD650, HD660 S, HD660S2, HD600, HD6XX, HD58X, HD580, HD565, HD545, HD535 Headphones, Ear Pads with Ice Silk Fabric - Dark CoffeeGlobal Recycled StandardGlobal Recycled StandardGlobal Recycled Standard

Fit perfect and keep the space correctly .. my ears feel fresh again .Simple to replace .. it has a water cooling system .. not sure why … but hey easy to replace and is very nice feeling material

Fits a Sennheiser HD660s very well. Very comfortable and soft. Not sure that I will be dripping water onto the foam, btu they say you can to make them cooler. No experience with that.

These follow the same profile as the stock pads at nearly half the price. In my experience they are less stiff and compress slightly more than the stock pads. The inside material feels similar to what you might find in a gel wristpad for your keyboard. I would not suggest these provide any type of additional cooling effect in extended use, although the gel material feels cool to the touch when you first put them on. The snap-in mechanism is not as refined as the stock pads but it works and they remain attached properly afterwards. These pads do not seem to change the audio profile of the headphone very much compared to stock pads.I would buy these again.

Excellent material. Cool ears.

They do really good job to keep your ears comfortable and it distribute the heat. higly recommended

These were warmer than the stock pads, I had to send them back.

These are great for me. They are the first pad I’ve tried on my 6xx’s that haven’t negatively changed the sound. The hd 600s and all the subsequent versions are notoriously pad sensitive and many audiophiles claim the stock pads are the only way to go but $50 or more is way to much to pay for those cheap pads that don’t perform like new for very long. These pads did change the sound slightly. Made the sound ever so slightly more V shaped than stock (slight boost to lows and highs) but not in a bad way. They are very comfortable to me but if you are sensitive to your ears touching the foam in front of the driver you might not like these. They compress more than the stock pads but this also has the added bonus of higher volume because your ear is closer to the driver. The cooling surface is comfortable but isn’t mind blowing cool or anything. I really like these and will be buying a few back ups in case they go out of production.

easy to install, keeps my ears cool, seems to be good build quality