Don't worry, the space time continuum will still be intact while wearing this Doctor Who TARDIS Laplander Hat! A must for Dr. Who costumes and fans of the BBC sci-fi show, this Doctor Who hat will keep you cozy during trick-or-treating and Halloween festivities. The soft knit material allows for a comfortable fit over the ears and the clever design of a public call box will keep unwanted aliens at bay. Acrylic/polyester. One size fits most adults.