Women's cap 4F F161 deep black 4FAW23ACABF161 20S Cap designed for women by 4F will be perfect for everyday use. Slightly curved, stiffened visor. Quick-drying fabric. Rear adjustable buckle closure. Vents. 6-panel design. Technical data: fabric: 100% polyester measurements (head circumference): S (50-54 cm), M (54-58 cm)