Alpha Industries MA-1 VF NASA Jacket
is a thermoplastic, silky material, first used commercially in a nylon-bristled toothbrush (1938), followed more famously by women stockings after being introduced as a fabric at the 1939 New York Worlds Fair. Bill Pittendreigh, DuPont, and other individuals and corporations worked diligently during the first few months of World War II to find a way to replace Asian silk and hemp with nylon in parachutes. By August 1945, manufactured fibers had taken a market share of 25%, at the expense of cotton.
Strong, tough and resilient synthetic fiber
Is poor against liquids, humidity