Gore-tex... after witnessing our dismounted light infantry get in serious hypothermia trouble with their high speed/low drag Goretex outer gear (NTC January 1995) on the top of a mountain goat mountain in serious cold weather and torrential rain - i have never been a fan of that stuff... too heavy... too thick... too bulky...
something thin and light and quiet to stop the wind when you are exposed and need to move... if it starts raining... i am stopping and erecting shelter/fire.
