So long as we discussed running, something that may not be avoided is the athletic shoes, the necessary equipment. A set of comfortable, appropriate and cost-effective athletic shoes is important. Thus, we must choose a correct one only for you, before you decide to purchase one, you will find three areas of athletic shoes you should know. The three parts are: outsole, midsole and upper. Outsole As the bottom of the shoes, it contacts with ground closely and directly. Therefore, it should be waterproof, anti skid as well as anti abrasion. The rubber and construction provides you a safety shoes copa mundial blanche. Firstly, the rubber should be durable and somewhat stiff, if possible, a lighter weight and more flexible would make the outsole perfect. Secondly, flex grooves and split heel make up a solid construction. The grooves around the forefoot of the outsole allow the foot to flex and roll naturally. As for the split and flared heels, it can make the heel-to-toe running motion more effective. Midsole Placed between the outsole and the upper, a midsole is the most important areas of athletic shoes for the reason that it ensures the stability of shoes and protects our feet. Sometimes while running, the vibration from the ground can reach to the body 8 times stronger than usual walking. Without a midsole, the vibration coming together with running would injure us. To be able to protect our feet, some famous sports shoes chaussures de foot pas cher like Nike shoes , Adidas shoes were applied with advanced technology. And there are a couple of types of cushioning are generally used in athletic shoes: EVA and PU, that could reduce excessive inward rolling of the foot and increase shoe`s stability. Upper Mainly refers back to the parts above sole. What matters are its ventilation, appearance and convenience. This is the part that closely contacted with your feet; we are able to take it like a protection cover. The materials and construction of the upper should provide stability, comfort and fit room for feet to flex. Furthermore, the look of the running shoes mercurial pas cher often plays part, for individuals are hard to resist the temptation from beautiful things.