Summer Casual Beach Dress Solid Adjustable Strappy Button Down Swing Midi Sundress with Pockets Material: 65% Cotton, 35% Polyester. Stretchy, Soft and comfortable Features: Adjustable Spaghetti Straps, Button Down, Backless, A Line, with Pockets Swing Flowy Summer Beach Dress Measurements: (bust measured armpit to armpit) Small: bust 15.5” and length 32.5” Medium: bust 16.5” and length 33” Large: bust 18” and length 33.5” XL: bust 19.5” and length 34”