The longevity of the Pegasus shoe line-up is a testament to how Nike has been able to adapt this particular shoe every year to adopt new technologies as well as to deliver on the often changing performance and comfort demands of the runners.source https://www.news18.com/news/tech/nike-air-zoom-pegasus-35-review-withstood-the-test-of-time-and-running-towards-perfection-1861939.html