I always size up in FN sandals/heels/shoes they always run slightly runs small. It’s like a black jean material. These came in a big box with no tissue paper to keep the shoes form or to separate them, they literally were just on top of each other with no padding. The left shoe straps seem stretched out compared to then right that’s tighter on my foot.

These slippers are cute to throw on. I wear a 9 and got 10 fit perfectly.