Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.
I haven't heard of any higher quality behind-the-neck cans before. I've even heard of people trying to mod their cans to go behind-the-neck, but that's all. Checkout head-fi.org forums. Perhaps you can ask there.
As a group, the behind-the-head 'phones have one of the poorest bang-for-the-buck values of all types of headphones. Most of them cost three to four times more than their sound quality warrants - in fact, I've found a $30 pair (from the you-know-what brand) which sounded equally as bad as the same brand's freebie Walkman stock headphones. And do you know what? The only behind-the-head 'phone which retails for more than $40US is an active noise-cancelling model from you-know-whom, which is basically the same craptacular low-end headphone with fancy noise-cancelling electronics.
That said, there is only one such headphone that I'd recommend: the Koss KSC-55. (Koss is a weird animal at the low end, since that company also sells the far less distinguished KSC-12 and KSC-17 in the same price range as the KSC-55. And I don't consider the Sporta Pro to be a true behind-the-head 'phone; it's more like a regular over-the-head 'phone whose headband is convertible to a behind-the-head configuration.) The KSC-55 should sell for $20US or less.
yeah, KSC-55 is your entire range of choices for that requirement . Apart from that, Grado had a project a while back to make another cheap disposable phone like their old SR40 model, basically by cramming the SR60 drivers into a cheap portable design, and I think they were planning on using a behind-the-head design. The project is apparently still going but they've been working on it for a long time, so don't hold your breath...