Reformation Yoanna Bow Mule Flat 9.5

Color: Black Satin Size: 9.5 Silk and leather. This is a lightweight silk charmeuse fabric - 100% silk. Spot clean + clean leather from www.thereformation.com I usually wear size 10, was hoping 9.5 would work too but it did not. Only worn once. I feel like it would be best with someone who normally wears size 9 or has a very narrow feet!