I use a few items of my hiking gear for off-road running, my sun hat when it's sunny and hot, my poncho to run in the rain, my Alpkit warm jacket when it's cold, my hiking socks, my baselayers, my fleece, my windproof, my wrap-around wind glasses, and my hiking underwear. Except for my running shoes and one pair of Ron Hill tights and a pair of loose running trousers (I like them best of all), I have nothing that I would call running specific.