Grab your egg beater, your plunger and your Dalek costume is complete! Cosplay as the Dalek or wear this super comfy tank dress as an everyday outfit, Doctor Who fans and non fans alike will love this everyday cosplay look! True to size only if you like it fitted. Many girls are going up one size in this dress. Ashley wears a Medium in this dress. Cara wears a size XL. Cotton Spandex blend.