Hi everyone,

I'm new to this, so please be gentle and apologies if this question has already been asked!

I have entered a half ironman in the Lakes for the end of September (the run is up and down Fairfield). I have done a couple of short fell races on the NY Moors but I'm lacking in kit (and advice).

As a seasoned walker, I have the proper jacket, fully taped seams, Gortex, etc. but it is too bulky for an 18l rucksack.

What are the recommendations for a jacket that's waterproof, has fully taped seams (requirement for the half IM) but does pack away into something resembling small?

Looking forward to hearing from you soon!

Mark.