I bought 10 XX and they are too narrow for my wide feet. I usually buy Propet 5E but not for this shoe. I thought "XX" was an excellent size, they could be quite large, but I was wrong. UPDATE I see it's 5E! That's what it says on the label inside. I bought a shoe stretcher and walked a full 30 feet to adjust them but to no avail. I should have returned straight away, but the 5E always suited me early. Waste of money and disappointment with the product.