The actual shroud is a linen cloth 14 feet 3 inches long and 3 feet 7 inches wide that bears the superficial imprint of the WHOLE body of a man (not just the head) as can be seen to the right.
The whole shroud is ONE SOLID PIECE which shows the superficial imprint of the whole body INCLUDING the head.
The reason that this is mentioned first is because in John 20:6-7, it describes what was found in the empty tomb after Jesus’ resurrection: "He [Peter] viewed the bandages lying, also the cloth that had been upon his head not lying with the bandages but separately rolled up in one place."
The fact that a separate piece of cloth is mentioned as being "upon his head" shows that a different piece covered Jesus' head, whereas the Shroud of Turin clearly shows the image of the head ON THE SAME CLOTH that covered the body.
So the Bible account indicates that the materiel used to cover Jesus’ body was NOT the one-pieced Shroud of Turin.
For much more, see:
SHROUD OF TURIN (INDEX; Watchtower Online Library)
Shroud of Turin (Search For Bible Truths)