This is the cheapest it's been since the sale about a year ago.
http://camelcamelcamel.com/V-MODA-Crossfade-Over-Ear-Noise-I…
One seller only sells to Amazon Prime members (could try the free trial? Might get you cheaper shipping), but the DealFisher vendor works.
They are full-size, closed, portable headphones. The XL headphone pads are recommended and some find them necessary: https://www.amazon.com/V-MODA-Memory-Cushions-Over-Ear-Headp…
The cans fold into the headband in a unique and compact way, plus it comes with a carry case that's about half the size of cases for other full-size headphones. From memory, reviews say every part of them is durable and well built.
Recommended by enthusiasts:
InnerFidelity video review, write-up w/ measurements:
https://www.youtube.com/watch?v=u4gd49nLqZY
http://www.innerfidelity.com/content/bassheads-delight-v-mod…
Z Reviews:
https://www.youtube.com/watch?v=DeQIJjNCk3I
Edit: The price has been dropping recently, and has dropped again today (by ~AUD $5). Title has been updated to reflect this.
You can also turn this (as well as other headphones) into a bluetooth headset with a receiver, e.g.:
https://www.youtube.com/watch?v=Ojv8VKNFKbk
This deal might work:
https://www.ozbargain.com.au/node/282113
Amazing price for some amazing cans. Bought these 2 years ago and still going strong with tremendous base