TRAIN XX NITRO was made for her. It features premium technology with a lightweight, NITRO-infused midsole for superior cushioning and responsiveness. A womenâs specific fit is engineered specifically for her. In PWR XX, she gets stylish support to sculpt, sweat, or crush cardio. Her fit, her workouts, her style. This product is built for her to feel secure, locked in, and grounded for floor work movements and light work on the treadmill. As always in this womenâs specific space, we are bringing fashion elements spearheaded by performance attributes & functionality first.ââ This new upper features a plush knitted upper for that more elevated consumer and also our brand new training formstrip that you will begin to see across our TRAIN PUMA range.