A Piece You Can Dress Up or Down: Old Navy Floral Puff-Sleeve Button-Front Midi Swing Dress This Old Navy Floral Puff-Sleeve Button-Front Midi Swing Dress ($45) is light enough for summer but can be worn with tall boots and a thick cardigan jacket when it gets colder, too. Image Source: oldnavy.gap.com Old Navy Floral Puff-Sleeve Button-Front Midi Swing Dress $45 from oldnavy.gap.com Buy Now