Items found on Mandatory Gear Lists of all the Major Events incl. but not exclusively Centurion Running, UTMB, Lakeland 50/100. This list is not the same for every event - check the specific event you are entered in to for exact details.
Hat or Buff Base Layer Waterproof Jacket (10000+) Waterproof Trousers Tights Gloves Survival Blanket Headtorch Back Up Light Source Spare Torch Batteries Water Carrying Capacity (eg. Bottles, Flasks or Bladder) Cup