Hi,
I'm selling my MBT-Shoes, UK Size 7.5, EUR Size 41 2/3, grey. They are in a very good condition and have only been worn a few times. The price new was 219.00 EUR. Price now: 140.00 EUR OBO.

Here's some information about MBTs:
Masai Barefoot Technology or MBT is not just a shoe in the ordinary sense – it is a revolutionary fitness aid from SwissMasai. This product will not only change the way you use your muscles, but will improve the use of your joints and spine. The uniquely designed sole, combined with correct training, achieves a more active and healthy posture and walk.
MBT advises the MBT shoes run 1 size small, therefore you may need 1 size up from your normal size. For instance, if you wear a size UK7, choose a size UK8.