Standard Fit: Not too loose or tight over the body. Size up for a roomier fit or to layer with a sweatshirt. Breathable double-knit mesh fabric has a midweight feel (204gsm) Dri-FIT® technology wicks away moisture Heat-applied twill appliques with faux stitching Embroidered Nike Swoosh and heat-applied woven jock tag MLB Batterman silhouette below the back neck seam Material: 100% Recycled Polyester Machine wash, tumble dry low Jersey Color Style: Home Move To Zero is Nike's journey toward zero carbon and zero waste, helping to protect the future of sport. Apparel labeled “sustainable materials” is made with at least 75% recycled content.