Several different types of civic model helmet liners were used in helmets that were of a non-military nature.  So diverse are the types that at least five or six different variations exist.  Some liners were produced from leather, although many were manufactured using cloth, canvas, or plastic coated cloth.  Cloth and canvas liners can be white or tan in color.  By comparison, civic model helmet liners appear "inexpensive" compared to the more durable looking combat style liners.  Some civic model helmets actually utilized combat style liners when available.  Most civic model helmets that were light-weight in nature were manufactured by smaller firms than those involved in combat helmet production.  As a result, the liners systems are often built on cardboard or leather bands using cork spacers to obtain size variations inside a given shell.  Chinstraps were typically riveted directly to the sides of the liner band.  In addition, various drawstrings were used including those that resemble modern "shoe strings", twisted cord, cotton woven cord, and string.