@tjagain ‘s experiment is one I tried on a nice breathable/waterproof coat a few weeks ago.
I’d been out for a walk in moderate rain. My head, neck and top of back and shoulders got fairly wet. Got home. When the coat was dry I poured water into the outside of the hood. It pooled nicely and immediately started dripping through. Darn!
I tried the same experiment on the body of the coat. No soaking through. The inside stayed dry.
the DWR still worked well – the coat’s outside was almost dry after a shake.
conclusion: not as well made or QC’d as I’d expected.
that prompted my thread on ‘what new coat’ and buying a Showers Pass Refuge.
the Showers Pass coat got tested in the same way: no leaks or soak through.