I have flat feet so that maybe why I love them. Great for narrow spaces. The noise cancellation feature is really a nice one which I never experienced before and really when in calls make a slight difference with supressing outside noise. ABS is relatively brittle and not too difficult to break if subjected to bending or hard impacts. The mix amp it comes with is great. Its cute and well-designed, why havent I found it earlier?! Pretty simple and easy to install this rack. I have since purchased a beading needle and have not had the same issue, which is why I am rating it 5 stars. candidly I bought these because they were the right price and because it fit the USB port required for my specific phone however Ive been really happy with the comfort and the fit, the sound quality is awesome. The fear is the actual plug will be forgotten or lost, therefore pointless to travel with.