Waterproofing kit

[clayt74]

I swear by Nixwax Techwash followed by the Nikwax TX wash in stuff.
Keeps it all tip top for a good few months, I tend to wash and re-proof my textiles every September/October just in time for the winter commute.

Yep definately agree with above; the real secret to keeping the proofing is never actually wash it with normal washing powder/ detergent.
always wash with nikwax techwash, that itself will revive proofing on most newish items. if the items are a bit older or winter is due then follow up the tecwash with TX wash-in and that will actually reproof them.
my frank thomas jacket is still going strong after 2 years of all year commute riding