Arc'athlete Adam Campbell is a trail ultrarunner, lawyer, and as of a few weeks ago, a Guinness World Record holder. Here is his favourite Arc'teryx gear for Fall/Winter 2012.

My favourite piece is the Incendo Jacket in Brimstone. It's light, breathable, and does a great job protecting me from the elements. It has a nice, trim, athletic fit, which suits my small runner's frame well. I wear it in conditions ranging from about -10C to +15C, depending on the wind, rain, or snow, and simply change out the base layer with the temperature.

I find that in the shoulder seasons, I'm often running at dawn or dusk along roads to get to a trail head, so I like to choose brighter colours to increase my visibility. The reflective strips give me an extra level of comfort with my visibility to traffic.