>>2198344i made the pattern myself based on an old ushanka i bought that was starting to fall apart, modified it a bit to make the flap the same length all around as you can see in picrel
any kind of fur will work as long as its nice and warm
for the outside i used canvas because its sturdy and water doesnt go through that easily
for the inside i used lined cotton fabric, the kind with the square patern that has a filling so its nice and warm