5 panels. Stitched ventilation eyelets. Self-coloured painted metal tri-glide adjuster. Tearaway label. Head circumference: 5... 5 panels. Stitched ventilation eyelets. Self-coloured painted metal tri-glide adjuster. Tearaway label. Head circumference: 58cm. The visor is made from recycled polythene, which is a tough, light and flexible resin.