You know what's better than rockin' a giant stadium? Studying a giant rock to find sodium! Show your love of science with this "Science Is The New Rock & Roll" t-shirt. • 100% cotton • Sport Grey is 90% cotton, 10% polyester • Ash Grey is 99% cotton, 1% polyester • Heather colors are 50% cotton, 50% polyester • Fabric weight: 5.0–5.3 oz/yd² (170-180 g/m²) • Open-end yarn • Tubular fabric • Taped neck and shoulders • Double seam at sleeves and bottom hem