Ideally, you need to choose a model for setting your foot. Leading brands such as Asics, Nike, Adidas, Mezuno have models for different pronation of the foot (turning the foot in / out). It also depends on your natural data whether you need additional “bells and whistles” for stability, arch support, etc. It is rare to find a person with perfect foot placement. It is better to spare no time and money once and run on a treadmill in a good store – everything will immediately become clear. The fact is that in a marathon you make a lot of the same steps, and often trifles that you did not pay attention to before begin to play the role. For example, if you have a slightly flattened foot, then you need to turn to shoes with a wider width (there is such a parameter in running sneakers!), Otherwise, you will quickly rub calluses on your fingers. For marathons, leading sneaker manufacturers produce special models, the so-called “marathon shoes” – lighter in comparison with training sneakers. When choosing a model, it is important that you feel really comfortable, before the competition, be sure to do a few workouts in these sneakers so that they get used to your foot and you are completely confident in the comfort of the model. By the way, it is highly recommended to lubricate all friction surfaces with Johnson Baby oil or plain petroleum jelly. And take him to the marathon itself. Some athletes also use coconut oil or other special ointments to lubricate their feet. It is better to choose non-cotton socks – they will quickly get wet and stop breathing. T-shirts, shorts and socks look for synthetic materials. If the marathon runs in the sun, a cap is also required. With heatstroke, the forces leave very quickly … You may also need sunscreen to prevent the body from directing forces to combat overheating / skin burns.