This is my 1st pair of clarks so hope they continue to be comfortable. This method works on most softer wood surface, but it does hold up strongly. So, good price on an excellent product. However, not everything is good. The green headband inside the hat is added after purchase. These are very comfy. They?re outstanding in their isolation during playback. I bought a pair a couple of years ago and they are similarly loose fitting so tend never to wear them very much. Sound quality is fantastic. Ive taken WF-SP900s for a swim regularly for 8 months now.