Hi,
Have a look at my Inov-8 Stormshell FZ Mens Waterproof Jacket.
While it would not last, should one wish to use it when carrying a fully loaded backpack of 40L plus, it is storm proof.
See https://community.hikingsouthafrica.co.za/t/inov-8-stormshell-fz-mens-waterproof-jacket-medium-blue-green-for-sale/2591
Kind regards,
Ian