• Head circumference: 21 ⅝” - 23 ⅝” (54

• Quarter-turned to avoid crease down the center

• Water-resistant material

• Dark Heather is 65% polyester

• 6-panel unstructured cap with a low profile

34 Number 34th Birthday Retro Men's Women's Trucker Hat Color:Pink • Head circumference: 21 ⅝”This six panel trucker cap with a mesh back will be a comfy and classic choice for a perfect day in the sun. Structured, mid profile, six panel cap 60% cotton, 40% polyester* Hard buckram front panels Mesh back Permacurv visor, matching under visor Plastic adjustable closure 3. 5" crown (8. 9 cm) Head circumference 21 5 8" to 23 5 8" (54. 9 cm to 60 cm) *The percentage can change a little from hat to hat