Named for the woman-specific double X chromosome DNA sequence, the Run XX NITRO Wildwash 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. An abstract animal-printed upper really makes the style roar. RUNGUIDE promotes proper alignment and increased stability for longer distances, while COOLadapt will prevent being too hot to trot.