Examine the SKU number on the box and the labels inside of the shoes. Every pair of authentic Nike shoes comes with an SKU number that is identical to the SKU number on their box. ... For example, a fake label may tell you the shoe was designed in 2008 when in fact Nike first manufactured that item in 2010.

All Nike shoes are packed inside a box with a certain label and tag. The colour and print of the box usually vary depending on the style but mainly the boxes revolve around the colors red, orange, and brown. The print on the box should have the size, serial number, and style, with a barcode.

Our Verdict. The Nike Zoom Pegasus 39 is both stiff and responsive compared to other running shoes that we tested, leading to a very supportive feel and a performance-oriented platform. The upper contributes to performance by being snug in the midfoot while narrowing in the toe-box to provide a locked-in feel.

The shoe also has a carbon composite plate, which helps rock the foot forward for a faster toe-off, but again, the plate is more durable than that you'd find in Nike's faster running shoes. There is a slight downside to these shoes: they are not technically legal.