Set on a white rubber sole, the Fun Vieira low-top sneaker is exclusively available online. It is set apart by its blend of Bianco white nappa leather and UV blue perforated calf leather, which reacts to light: an elegant innovation. This model showcases Maison Christian Louboutin's exemplary creativity, featuring the creator's signature on the back and delicate topstitching. This treated leather changes color when exposed to UV rays. The effect lasts up to a year if the shoes are stored in a cool, dry environment, away from sources of heat and light. Online exclusivity.