White Peter Pan Collar Blouse & Sheer Scarf - 50s Retro Set - Size Medium Peter Pan rounded collar button up blouse, short sleeves Size Medium - Please check the picture of the size chart in the listing to see the actual physical measurements of the shirts. Sizing Tip: The blouses are a boxy, straight cut. They are not tapered. They tend to run large. If in doubt - order one size down. Blouse is 65% polyester 35% cotton Sheer polyester square scarf 21" x 21" with hemmed edges