The Bastille Adult This Is Your Heart Back Print T-Shirt is crafted from 100% Ringspun Cotton with a soft touch fabric, showcasing a back print, text, and triangle design, crew neck, and short-sleeved style, with 100% official licensing, a regular fit, weighing 153gsm, and available in sizes S at 37 in, M at 39 in, and L at 42 in.