Kathmandu Epiq Men's Hooded Down Jacket v2
If you are going to be stood around for any period of time before you start running, a warm jacket is a must. New Zealand brand Kathmandu have a collection of down jackets which provide great insulation. The Epiq has an outer shell made from Pertex Eco, which is made from recycled yarns, while incredible warmth is provided by “responsibly sourced down”. There are also two brushed side pockets, an internal zipped pocket, and an adjustable hood. The jacket also comes with a handy stuff sack, which the jacket squeezes in to for storage. Great for post-event gatherings too.