good rule of thumb to avoid overheating is to kit yourself out as if it were 10ºC warmer. Wind affects your body's ability to control its temperature by sweating, so wrap up warm on windy days. A buff will shield your face and keep you breathing
GETTY IMAGESIf you’re just getting started, don’t be befuddled by terms like wicking, pronation or GPS. Get everything you need - not what the shop assistant wants to sell you – with our guide to key kit essentials.If you’ve been running for a