Inspired from iconic silhouette addressed the growing running market of the 1970's . created to stand the test of time and comfort , The New Endura is equipped with S.T.E.M. Tech. This new technology picks up where the development for the original Endura left off at in the mid-1980's. Designed for the casual runner who may consider training, STEM tech focuses on the core of the shoe with a focus on a balanced " Mid-Strike" technique. Weighing only eight ounces , It the perfect shoe to train in.