In reply to Dan Webber:
I got some Nepal cubes after going to London and trying on a variety of shoes.
The shops that had them were Ellis Bingham, think in Covent Garden.
There were a few other shops stocking stuff in the same locale.
From trying on the shoes I changed what I was going to buy, I found the cubes a better fit.
They also had a large range of sizes compared to other shops who had a limited selection.
Also I got them online in the end as it was cheaper