SIZE 1 will fit most sizes and buttons can be moved on the jacket to accommodate.
SIZE 2 is for larger jackets and measures 19.5 inches from button hole on left to button on right.

This is the early old pattern 1968 DPM, button-on type. Green cotton lined.
This hood was used up until the 1985 pattern jacket when the cammo colours changed slightly and the dots on the cammo were removed.

Buy a few to make use of the flat postage rate, 

We have hundreds if you are interested to make an offer for the lot.