For the Perfect Loose Dress: Oversized Midi Shirtdress This Oversized Midi Shirtdress ($75, originally $108) is made of a crisp cotton poplin fabric that gives it a polished yet relaxed look. We like that it's oversized, so you can feel easy-breezy as you go about your day. Image Source: madewell.com Oversized Midi Shirtdress $75 from madewell.com Buy Now