[18] The footwear are built with a fancy construction of "rubber" with plastic/metallic stiffeners to limit foot motion. Far more advanced runners often don flatter and flexible sneakers, which permit them to operate far more quickly with better comfort and ease. Sneakers became a fashion assertion and were being promoted https://hyperbookmarks.com/story19119441/the-2-minute-rule-for-%CE%B3%CF%85%CE%BD%CE%B1%CE%B9%CE%BA%CE%B5%CE%B9%CE%B1-%CE%B1%CE%B8%CE%BB%CE%B7%CF%84%CE%B9%CE%BA%CE%B1-%CF%80%CE%B1%CF%80%CE%BF%CF%85%CF%84%CF%83%CE%B9%CE%B1