Ralph by Ralph Lauren RA5305U Sunglasses | LensCrafters。Ralph By Ralph Lauren Women’s Green with Tortoise Shell Design Sunglasses Frame & Fit Code Breakdown The numbers printed on the inner temple arm represent the exact manufacturing and sizing dimensions for this specific pair:601/T5: The official Ralph Lauren color code for a Light Tortoise frame paired with Brown Polarized lenses. The \"T\" typically indicates a polarized lens technology.58: The lens width (horizontal diameter of one lens) in millimeters. A 58mm lens provides a slightly oversized, flattering coverage.10: The bridge width (the distance between the two lenses over your nose) in millimeters.120: The temple length (overall arm length from the hinge to the tip behind your ear) in millimeters.2P: Represents Category 2 Polarized lenses. This level of tint is ideal for medium sunlight, offering premium glare reduction for daily activities, driving, or water viewing. These are used and have slight scratches that don’t interfere with the view. INV2-5