An upturned collar is an otherwise flat, protruding collar of either a shirt, jacket, or coat that has been turned upward.
History
Origins
Before the early 20th century, most shirt collars were turned up in some manner. Men and women alike wore tall, stiff collars (as much as three inches tall), not unlike a taller version of a clerical collar, made either of starched linen, cotton, or lace. The writer H. G. Wells remarked in his 1902 book Kipps that these "made [the] neck quite sore and left a red mark under [the] ears." Between the late 19th and mid-20th centuries, men's collars were ...