Michael Kors Grindelwald Optical Frame pairs a squared silhouette with a luggage tortoise front and metal temples for everyday prescription wear. Key attributes: Brown | Tortoise | Injected plastic | Prescription-ready | Demo lenses | Square silhouette | Tortoise front | Metal temples | Injected front | Dimensions & fit: Medium fit | Composition & care: Injected plastic front | Metal temples | Clean lenses with a microfiber cloth; avoid abrasive or chemical cleaners; store in the supplied case.