Round Neck T-Shirt The Adidas IY Series is built for everyday versatility : 1) 100% Premium Cotton: High-quality, breathable fabric for a soft, natural feel against the skin. 2) Classic Crewneck Design: Features a reinforced ribbed collar that holds its shape wash after wash. 3) Modern Regular Fit: Carefully tailored to provide a clean look with plenty of room for movement. 4) IY Series Branding: Subtle, high-density print or embroidery for a premium, authentic Adidas touch.