Hybrid Earpads for JBL E65 (E65BT E65BTNC), Live 650 (650NC 650BTNC), Live 660 (660NC 660BTNC) & Duet NC Headphones, Cool Gel, Super Soft Fabric, PU Leather & Thicker Memory Foam

Replacing my old, tattered headphone pads on my JBL E65BTNC (BT = bluetooth, NC = noise cancelling) with the new ones was easy once I gently used a butter knife to pry the old ones off. The instructions were simple but effective. The new pads are comfortable and seem to be good quality. I hope they last for as long as or longer than the old ones. Hopefully the silky cloth material on the part that touches the head will hold up better than PU leather. It's very comfy.
p.s. for anyone trying to find out the model of his/her headphones, for mine, it was on the inside of the part that pulls out to adjust the headphones to the size of your head.

Relatively cheap, feel comfortable, easy to fit to headphones, came with a nice set of simple instructions.

Perfect fit easy to replace and fast delivery

The picture in the listing for this item showed a blue segment in the pads, apparently containing cooling gel. This was the main reason I bought this brand rather than the cheaper alternatives. There's no blue in the pads I received, so I imagine no cooling gel either. Still, they look nice and make the headphones look new again. Also I think the passive noise cancelling is worse in these than in the originals. So I'm not totally happy but not bothered enough to ask for my money back.