Being impecunious at the onset [1965] my first SD hat was from Messrs Allkit. After a couple of tours, the second being in FEAF, it had collapsed gently into some resemblance of a cloth cap and it was soon suggested [quite firmly] that I should source a replacement. It moved gently sideways into a new existence as my shooting hat at Bisley, until that existence was 'officially' terminated by a 4* interjection some time in the late 80s and berets became mandatory. It still soldiered on, though - the attached photo is dated 1993
As a final gesture of defiance, I wore it on my last day in uniform whilst clearing at RAF Uxbridge in 1994
It still resides in a corner of the attic.