I thought it was going to made of stronger thicker polyester.
Great for kayaking changing cape which allows changing in car parks!
Excellent at keeping you and your rucksack dry on those rainy days. Also good for the rainy/snowy days when skiing and much cheaper than a storm jacket.
a large and very waterproof cape, covers any rucksack easily. only used once so far but the rain was very heavy and I stayed dry.