Sustainably made and named for a woman’s double X chromosome DNA sequence, the Puma x First Mile Run XX Nitro gives you Puma’s everyday cushioning and stability in a female-specific design. The Run XX Nitro’s updated fit is made to hug a woman’s foot at the heel, instep and arch so you’ll feel comfortable and supported all day long. Puma designers also added a sustainable twist to this special edition of the Run XX Nitro by using First Mile® yarns for the upper material that contains recycled post-consumer plastic. Striking the perfect balance between durable and lightweight, a responsive NITRO midsole foam keeps you feeling bouncy on your feet. When your run goes long and your legs start to feel tired, a firmer rim of RUNGUIDE foam helps promote proper alignment and keeps the foot centered through your stride. From the road to the sidewalk to the track, a durable PUMAGRIP rubber outsole gives you multi-surface traction. With a breathable mesh upper, female-specific support and energetic cushioning, run confident and fast in the women’s Puma x First Mile Run XX Nitro.