Nike Shox R4 Women's vs Nike Shox Z Women's Running Shoes

The Shox R4 is the closer recreation of the 2001 original: a bulkier synthetic-and-mesh upper, laser perforations, and the full pillared heel that Shox fans recognize. The Shox Z is the slimmer, lighter option with a foam midsole under the columns and shiny synthetic-leather accents, so it wears more like a casual sneaker than a retro runner. Owners of both tend to praise the cushioning and complain about the firm, heavy feel of the columns; the R4 is heavier and stiffer, the Z more flexible but with less of the original's presence. Buy the R4 for the retro look and heel support, the Z for a lighter everyday shoe.

• Choose the Shox R4 if you want the authentic 2001 silhouette, a roomier synthetic upper, and maximum Shox column presence under the heel.
• Choose the Shox Z if you want a lighter, lower-profile Shox with a foam midsole and shiny accents for everyday casual wear.