Kinell! that's the thing we 'G'Spot baby sailors used to wear on expeds, all it is, is a bl**dy scarf (the comforter) folded a couple of times and stuck on the head.
Looked damned silly with white tape and your name sewn in red silk on the side when we did wear it.
I thought it were something really 'in your face' killer bootie headgear !
The cap comforter is only worn by Recruits during the Commando phase of Training, once all the Commando Tests have been satisfactorily completed it is exchanged for the Green Lid of the steely eyed death dealin' Sprog Marine.