Made of 100% Cotton Brim measuring at 2 3/8 inches Hook and loop closure Interior sweatband Lightweight and breathable One size fits most up to 21 inches split Speed into Summer in action with this Sonic the Hedgehog hat. Choose from two unique colorways or get both to double the fun. The hat is made of lightweight material perfect for everyday wear. Warning: This product contains chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.