sturdy headphones

[McGyyver]

Hi,
in the last two years I've destroyed quite a few headphones. I made use of my warranty 4 or 5 times and still got three dead soundmagic pl30s laying around. My newly bought Sennheiser CX200 are dying aswell :/.
I use my headphones alot, f.e. for riding with the bicycle to school, running, ... . All of my headphones had problems with loose contacts, be it with the part where the plug is connected with the cable or the part where the cable goes into the headphones themselves.
I was going to order my fourth set of headphones at amazon today, but I had to notice, that amazon doesn't sell the pl30s anymore :/.

Can you recommend me some sturdy options on headphones? Is this a problem some of you have aswell? How do your headphones handle tough use?

BTW: While I really liked the sound of the soundmagic pl30s, the sennheisers sounded kinda dull, hollow to me:/

Thanks for any answers in andvance and forgive me for mistakes with my english

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