I reject the premise. I bet a plastic bag would also repel water better. This is not the point.

The point is to use something real, from a surplus animal, out of respect, and warmth, and a connection. Something from an animal in this case that someone likely-ate, and will last for generations if taken care of, or subsequently degrade after a few years if discarded!

The point is to be real, and to be human and to be an individual, to have individual and unique garments; all of which fall after the most important point which is to use and utilize the gifts God has given us.

This is what the paid (and funded) ANTIs will never understand as they continue to rail against all that is.