This trendy trucker hat is perfect for all occasions. Choose the trucker hat that best fits your style and use it to transform any outfit into a trendy, individualized look. If your child is full of personality, their outfit should be too. To find your child's perfect fit, measure around your child's head, where you would like the base of the hat to sit. Extra small is 43 cm, small is 48 cm, medium is 52 cm, and large is 56 cm. For the best fit, be sure to measure your child's head, since children's head sizes vary. Generally, size extra small works best for children 6 to 12 months, size small is designed for children 12 to 24 months, medium is best for children 2 to 5 years old, and large is for children 6 years old and beyond. Regardless of size, all our trucker hats are designed to fit comfortably for a full day of stylish play! Pick out and order your favorite designs! Your adorable kid just got groovier.