Help your teams look and play their best in the Nike Dri-FIT Park Derby IV Jersey. Mesh on the back and underarm panels offer breathability where athletes need it most. Body and sleeves are a Nike Dri-FIT knit fabric that moves sweat away to help keep players dry. This top is made with 100% recycled material. Side panel construction uses a more efficient pattern to help reduce material waste. 100% POLYESTER. Slim fit for a tailored feel.