Designed for running, the Nike Fast jersey is lightweight and breathable to give you more comfort with every stride. With its relaxed fit and lightweight design ( ultra), you'll have complete freedom of movement from start to finish. Benefits Nike Dri-FIT technology wicks away perspiration for greater evaporation rapide. You stay dry and comfortable. Lightweight, breathable open mesh fabric. Product details Swimmer back Reflective Swoosh 100% polyester Machine washable Imported This item is not intended for use as Personal Protective Equipment (PPE).