PRODUCT STORY Named for the woman-specific double X chromosome DNA sequence, the Run XX NITRO WNS stands behind PUMA’s RUN FOR HER motto with a progressive, female-specific design. Featuring an updated fit that hugs a woman’s foot at the heel, instep, and arch, the running shoe’s new, firmer NITRO midsole is the perfect balance of durable and lightweight. RUNGUIDE promotes proper alignment and increased stability for longer distances. FEATURES & BENEFITS CUSHIONING: NITRO: LIGHT & RESPONSIVE: Advanced foam technology providing superior responsiveness and cushioning in a lightweight packageFOOTSTRIKE GUIDANCE: RUNGUIDE, a firm density rim, promotes proper alignment and keeps the foot centered through each stride DETAILS Low boot constructionMesh upperNITRO Foam midsolePUMAGRIP high-traction rubber outsoleMesh tongueLace closurePUMA Cat Logo at tonguePUMA Formstrip at medial sidePUMA Cat Logo at toe