An appeals court says Christian ##a can enforce its red - lacquered sole trademark . But the trademark applies only if the sole color contrasts with the color of the back of the shoe . The trademark does not apply to monochromatic shoes , such as designs by Yves St. Laurent . A lawsuit that Louboutin filed in March 2011 took place with four specific red shoes .
An appeals court says Christian Louboutin can enforce its red-lacquered sole trademark . But the trademark applies only if the sole color contrasts with the color of the rest of the shoe . The trademark does not apply to monochromatic shoes , such as designs by Yves St. Laurent . A lawsuit that Louboutin filed in June 2011 took issue with four specific YSL shoes .