Koss PortaPro (with Case)

Pros: Lightweight
Extremely comfortable
Very powerful for such a small design
Great sound quality
Very durable
It's affordable!

Cons: The open design headphone (No sound cancelation)
Probably the same design since the 80's

Summary: I actually found out about this headphone by accident when I was trying out some other headphones in the shop. From a glance, one may think that it's probably a China made headphone or a cheap headphone but once I tried it out, I was surprised by the amount of power it can produce in such a small package! It's balanced ratio of both bass and treble is outstanding for my standard.

The only con is that it's an open design. This means that there's no noise cancellation and the fact that if you put it too loud, others can hear what you're listening to. So if you're using this in a library, please take note.

In conclusion, it's pretty much the best headphone I've tried in awhile.. To be honest, I use this more often then I use my Shure 425 earphones since it's more comfortable to wear especially when traveling or just going out jogging.