Dior Sunglasses. Series 30MONTAIGNE MINI R2F. Series number: CD40020F. Color code: 90V. Shape: Oval. Lens Width: 57 mm. Lens Bridge: 20 mm. Arm Length: 140 mm. 100% UV protection. Frame Material: Acetate. Frame Color: Shiny Blue. Lenses Type: Blue Grey. Rim Style: Full-Rim. UPC/EAN code: 192337077647. Dior 30MONTAIGNE MINI R2F Blue Grey Oval Ladies Sunglasses CD40020F 90V 57.