I read article after article telling me how free running is. All you need is a pair of trainers, a sports bra, something resembling a tracksuit and you are good to go. I used to be one of those people who believed that. In fact the first time I went running I had the all the requisite gear and off I went. I remember coming back, looking at my feet and wondering why they were covered in blisters. I did a little research and saw that it was probably my socks. Socks? I hadn’t even thought of socks.