Women’s Zac Posen Sia Eyeglasses With Case - Tan Tortoise 51-16-140 These glasses are in excellent used condition. They are Tan/Brown/Tortoise they are super stylish and cute! Comes with case!! They are approximately a -4 prescription. These would be a great addition to your eyeglasses!! Feel free to make an offer :) Brand: Zac Posen Size: 51-16-140 Color: Tan/Brown/Tortoise Condition: Excellent used condition