What does one wear to visit a prison? Jumpsuit orange is not a good idea. Take a page from Kate Middleton’s stylebook and try monochromatic minimalism on for size. Our fave Duchess arrived at the Rehabilitation of Addicted Prisoners Trust at Her Majesty’s Prison Send in Woking, England earlier today wearing 50 (or more like three) shades of gray. From her tailored dress by London-based label The Fold (we’re obsessed with the pretty peplum) to her suede Jimmy Choos and clutch by Hobbs, the Duchess’s chic day look proves that neutrals needn’t be a yawn. Add in loosely pinned back locks and girl crush-worthy makeup (her subtly flushed cheeks have a Ralph Lauren vibe, no?) and you’ve nailed prison chic just like our girl K-Mid. Welcome to the Big House.