I am hoping to purchase a pair of French soles online. The "low-cut" seems younger and sexier and has more leather and color varieties than the "simple cut". Is it true that the low-cut is only for narrow feet? I am size 23.5cm (USA 7.5) and my widest part on my feet is 10cm (approx 4 inches). Much as i am tempted to buy the low-cut, I am afraid the low-cut would stretch out so much that it goes over the sole. What do you french/london sole owners think? Should i just stick to the "simple" cut? Also, are these ballet flats true to size? Thanks for your help in advance!