Puthtma Run XX NITRO Running Shoes

Named for the woman-specific double X chromosome DNA sequence, the Run XX NITRO stands behind Puthtma��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.