The 'Field Trip™' is our most popular hat style with its 5 panel unstructured crown. This kids hat is 54 cm in diameter. Its build is derived from our nostalgia for vintage workwear hats. The timeless hats feature a fabric strap with brass metal clasp. Brushed Cotton Fabric Fabric Strap with Brass Metal Closure Earthy Tones Available Kids - 54 cm Imported