In reply to GaryHW:
As the question was what do I wear on the hills. For shoes I wear Merrell vapour glove 4 which are a lightweight zero drop shoe with a vibram sole. I have found moving to zero drop little cushion shoes has made my hill going like much better, but they are an adjustment that takes getting used to.
For me they do the job well for trail running, hiking and especially climbing approaches as they are super light for living on the back of a harness.
A Downside is they don't have a loop on the back for a biner, so you have to tie a knot in the laces to carry them on a harness.
Outer layers wise it obviously depends on the weather. This week in the Lakes I've been living in a Patagonia Capilene long sleeve top as we've had hot weather and high UV and I find I don't use enough suncream on my arms out walking and climbing. On my legs I've been in some random crag hopper trousers I found in a charity shop, which isn't much help.