Prada Sunglasses. Series number: PR 57YS. Color code: 1BC06R. Shape: Irregular. Lens Width: 57 mm. Lens Bridge: 18 mm. Arm Length: 140 mm. 100% UV protection. Non-Polarized. Frame Material: Metal. Frame Color: Silver. Lenses Type: Pink Photochromic. Rim Style: Full-Rim. UPC/EAN code: 8056597660082. Prada Pink Photochromic Irregular Ladies Sunglasses PR 57YS 1BC06R 57.