(weve already taken off two layers for 8 bottles and put it in another location - the flexibility is good. And it has been a great way to start to working on strengthening my knees so I can get back on the street to ride. Persino il colore, caratteristico del marchio, evoca da solo "La Cuffia Aeronautica"! They?re easy to slip on and off and are very comfortable to walk around for a few hours in. :-) Happy with the purchase. I can imagine if you had to take this apart and rebuild it for any reason, theres a good chance those plastic threads wouldnt hold up, so keep that in mind as well. The headset adjusts on both sides for a bigger head and also the ear panels swivel so it can adapt to a wonky head! I bought the kids? size because they?re cheaper ?? so I wondered how they would fit but they?re perfect! Its great for a change to be walking tall. ? Just beware.