In reply to Mark Eddy:
> At 40 years old it's doing well. If you decide to replace, Paramo are well worth a look. They are constructed quite differently to goretex jackets and will work well over many years. I have a 15 year old Paramo Velez and it has been hammered with use. Still works well, just needs regular Nikwax treatment. Great environmental and ethical credentials too: https://www.paramo-clothing.com/en-gb/ourethics/manufacturing.php
I have a Velez of similar vintage. Water pours in from the front and side zips, has done since it was new.
I have an even older Cascade that has never let me down.
TBH I think Paramo is a bit of a gamble. An individual garment seems to either work or it doesn't. Worth a try when they were usually available at heavily discounted prices,but I wouldn't buy one these days.