The stuff gets brittle over time. Had a windjacket for bicycling where this happened after about a year of usage. Then, one day coming home, out of the rain, p

The stuff gets brittle over time. Had a windjacket for bicycling where this happened after about a year of usage. Then, one day coming home, out of the rain, pulling it off I wondered what all those tiny white flakes on my shirt were? Didn't even realise it until I discovered it was that white inner lining :-)