Christian Louboutin Black Heeled Boots with Red Soles

PLEASE READ! Elegant black medium height booties. Signature red soles. Sleek and stylish design. I’m not sure if these are authentic. This is a resale. They’re really cute with a comfortable heel and very slim at ankle. Unfortunately, they’re too small for me. These are marked as a 40 (US 10), but fit like a 8.5/9 (US). There is no stretch to this boot. Previous seller mislabeled the size.