I have extremely high arches, planters faciitis and I supinate. Im always stuck between an XS or S but I would recommend sizing up (if youre in between size) just because theyre see-through when bending over. Perfect, as expected. The recommendation for the height of the upper piece was not accurate for me. This e-book is a mess. Nicely made and looks great on my kitchen counter filled with spice jars. It was several minutes until I encountered a group of zombies to open fire on. Holds 9 bottles of your favorite wines! So if you talk a lot or listen to music you cant go wrong. Love the color!