The website is very easy to use and gives simple instructions to measure your feet to work out your size. Mine fit as though they had been made for me, they are so comfortable. The style is lovely and I can't wait to wear them! They fit so well that I have no need to 'wear them in which is a real bonus. They are really nicely packed with lots of foam and shoe trees to keep them a nice shape. Having seen the same shoes after being dyed, I'll change the colour to something dark so that they will be wearable after my wedding. Well done Rainbow Club. I cannot recommend you enough. My shoes are PERFECT! Delivery was speedy and efficient too.