We were in the Vans shop at the Cheshire Oaks, being slightly confused by shoe sizes. Normally, American shoe sizes are just British sizes +1, so we're used to a size 11 being a 'normal' size 10.
There were some shoes on the shelves labelled size 11, but with a sticker on saying 'UK8.5'. At first we thought they had been mis-labelled but then we realised they were women's sizes. To add to the confusion, they looked more like men's shoes. Ah well. I'm sure they do it deliberately to confuse us.