Your young fan can start game day off right in this Seattle Mariners Felix Hernandez Mesh Batting Practice Jersey from Mitchell & Ness. This Seattle Mariners jersey features sewn-on fabric appliques with embroidered detail, making it a stylish and authentic way to represent your team. Crafted from lightweight and breathable 100% polyester mesh, this jersey will keep young fans cool and comfortable whether they're at the ballpark or watching from home. Jersey Color Style: Batting Practice. Brand: Mitchell & Ness. Sewn-on fabric appliques with embroidered detail. Officially licensed. Practice Jersey. Rounded hem. Material: 100% Polyester. Imported. Machine wash, tumble dry low. Woven jock tag at hem. Full-button front. Size: YTH S. Color: Navy. Gender: male. Age Group: kids. Material: COTTON.