I've got a high instep and a high arch so can only wear flattish shoes - no more than an inch high. I also need the shoe to be fairly open on the top of the foot as the high arch means that close fitting shoes will rub that part of the foot iyswim. Any help much appreciated - my current shoes which I've had for ages have started to tear today - and yes, I don't buy shoes often as it's a nightmare.