60/40

From the readily available to the annoyingly unobtainable, plenty of labels have had a crack at the classic sixty forty mountain parka. Before waterproof-breathable shells such as goretex were invented, the "60/40" (60% cotton, 40% nylon) parka was widely used, brands such as Sierra Designs and Woolrich starting the trend in the late 60's, a trend which has never gone away.

Pictured above, an old school Woolrich 60/40 with wool plaid lining, and Engineered Garments cotton poplin parka from 2008.