Koi are an invasive species that live in the DC area's Potomac River. Beautiful, but unwelcome. • 100% combed and ring-spun cotton (Heather colors contain polyester) • Fabric weight: 4.2 oz/yd² (142 g/m²) • Pre-shrunk fabric • Side-seamed construction • Shoulder-to-shoulder taping • Blank product sourced from Guatemala, Nicaragua, Mexico, Honduras, or the US