A crisp white button up is one of those fall staples that works with everything. I love it with denim, trousers, layered under sweaters, or worn open over a tank. I’m wearing an XS. white button up shirt, fall wardrobe staple, classic white shirt, women’s button down, fall layering piece, work outfit, casual fall outfit, everyday basics, transitional fall style, wardrobe staple, annabrstyle LTKOver40 LTKootd LTKSeasonal