I am working on a well insulated cap to keep my bare cranium from freezing up at night. The last piece of the puzzle for my ultimate insulation project. My thought was to borrow the design of those Russian Ushanka hats (the flap-eared ones with fur on the front) only with a few changes;
-No soviet insignia on the front
-Short-nap fleece instead of fur
-Liner/exterior of Impetus 1.0
-A 1.5"-2" layer of down insulation instead of the typical wool
-Make the front flap able to flip down to function as an insulated blinder
(possibly with a secondary cloth flap behind it to go over my nose and mouth)
-A bulky collar will be added that goes around behind my neck to act as a "draft tube"
-It will have some Velcro attachments that secure it to my top quilt
I have the inside layer sewed up and the fleece liner attached. Nicely snug, very comfy. No drag on the whiskers since the lower portion is fleece lined. Tomorrow I will attempt to attach the outer layer, but I have a few questions I hope you can chime in on:
-Would wrapping down insulation around my head present any problems? It doesn't seem like it should, but for all I know exhaled moisture would collect in it for some reason
-Would baffles likely be needed for something like this which is highly curved, but about 10"x10" if flattened out? (I'm guessing about 3oz of down will fill it)
I'll put up some photos tomorrow; it's coming out alright so far, especially considering it was built with little planning, no pattern (just reverse engineering my ushanka hat), and trim-to-fit construction. BTW, sewing a hemispherical form is pretty tough
TCB
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