naepace wrote:I was told that using the wash in method would result in a loss of breathability?
I think it depends what you are proofing
for jackets which include a wicking lining which requires the lining NOT to be proofed that is probably the case. Some jackets have a mesh liner which is part of the breathability system. However I'd doubt that would apply to a soft shell. Paramo jackets (for which TX direct is designed) are proofed using the wash in stuff, it is so much easier to apply than the spray on as well, which is a bit of a pain.
having said that I have not got a Rab Vapour Rise jacket and i am not sure I'd recognise one if it walked into my house so don't consider my view gospel on that particular garment