Smithy
Well-Known Member
Sir Edmund didn't wear sheepskin going up Everest. He wore down filled nylon jacket. Cutting edge of technology then and still the lightest weight warmest option.
Exactly!
I still love how down has never been surpassed for insulation quality and never by synthetics. I have a fancy pants Canada Goose parka which I use in seriously cold temps, it's got all the whistles and bells, is wind proof and water proof, and yet it's still insulated with down feathers.