i think i know what hat you have now. for my cap and hat, both
have 2 layer.
the hat has 2 layered on the side wall and as for the cap, the
whole thing is in 2 layered. there is an extension where you can
bring it down and cover your ear. the inner part of that extension
is made up of wools.
I asked someone who went US for course to bring back for me
