Following on from my 'desperate' thread, I am examining my style and trying some new things. I am finally bored of my uggs and have bought a pair of converse online. I am a 6- 6.5 and believing that they come up small I ordered a 7. They have arrived and are mahoosive! I'm sure they would fit DH's size 10 feet. The shop will exchange them but what size do I need?