1.1 INTRODUCTION This project is about the study of running shoes for world championships. First of all, the running shoe is particularly used for running long and short distances on hard and/or irregular paths, roads or similar. The most famous shoe manufacturers and brands for producing shoes for the world championships are Nike, Adidas, Reebok, Puma, Converse, New Balance, Fila, K-Swiss, Asics and others. All these brands compete with each other to produce the best and most up-to-date shoes in order to retain customers. Each shoe has three different soles which are sometimes made of different materials to satisfy customers. Of course, each material has its own different function. The most important parts of running shoes are the upper part of the shoe, the insole, the midsole and the outsole. According to Kenneth W. Graham, Edward J. Norton, and Shuhei Kurata (1985), the outsole-supported stabilizer surrounds the upper within the heel region to provide support to the upper of the shoe. Armin A. Dassler (1983) stated that the sole absorbs impacts in soft and resilient material, that on the driving side a profile is made of wear-resistant material, with some areas of the sole being made more flexible than the remaining areas of the sole. Armin A. Dassler (1983) also stated that the characteristic is that there are regions of the sole with different compliance only in the heel and possibly also in the joint, the arrangement being such that the heel and possibly the joint region with less compliance inside the sole it begins and reaches the maximum through the single longitudinal axis extending the central plane of the running sole. So, what makes the materials and features important in this project will be addressed for each... half of the paper... ts. The processes of making running shoes are supposed to be in order. Originally, shoes were made by hand. but then the artisan shoemaking tradition was largely replaced in terms of the volume of shoes produced by industrial mass footwear production, but not necessarily in terms of quality, attention to detail or craftsmanship. Therefore, in this project the technologies used to make running shoes will be discussed. The upper and outsole design attempts to maximize durability, stability and flexibility factors while maintaining the lightest weight possible. According to Ronald C. Yonkers (1982), this is achieved by relating the structural design of the outsole to an analysis of the load on the interface between the outsole and the ground during running. In this project we will discuss every possible way to overcome problems and achieve goals.