Surf Hat With Break-Away Clip on Chin Strap65% Polyester, 35% Cotton. UPF rating 50+ Excellent Protection. Meets ASNZS 4399:1999. PolyCotton fabric with soft brim. Large metal eyelets for ventilation. Toggle and break-away clip on chin strap. Colour: Black, Bottle, Gold, Maroon, Navy, Red, Royal, SkyBlue, White. Sizes: 55cm (S),57cm (M),59cm (L),61cm (XL).