1
general::
Also, from head to heels or foot;from tip or top to toe. Over the entire body, in its entirety. For example, He was dressed in black from head to toe, or She ached all over, from tip to toe. These expressions date from ancient times. The alliterative head to heels originated about 1400, and Shakespeare had "from top to toe" in Hamlet (1:2).
American Heritage Idioms
2
general::
Phrase(s): from head to toe
Fig. from the top of one’s head to one’s feet. • She was decked out in flowers from head to toe. • The huge parka covered the small child from head to toe, assuring that she would be well-protected against the cold.
McGrawhill's American Idioms And Phrasal Verbs