The 15% off promo code mind15 allows for a discount on the purchase of sunglasses and prescription sunglasses. More Info » frame purchase required. offer may not be used on eyeglasses, contact lenses, kaenon, zeal, maui jim, oakley, ray-ban, smith or costa products. promo code valid before any shipping costs and/or any applicable taxes are added. cannot be used in conjunction with other offers or price match guarantee. offer ends march 29, 2017.