100% Polyester Coolmax® fabric sweatband. Lightweight breathable fabric. Pre-curved peak. Ponytail opening. Slide adjuster an... 100% Polyester Coolmax® fabric sweatband. Lightweight breathable fabric. Pre-curved peak. Ponytail opening. Slide adjuster and elasticated band fastening. Tearaway label. Head circumference: 56cm. The visor is made from recycled polythene, which is a tough, light and flexible resin. The recycled polyester used is equivalent to 1.7 bottles of 330 ml.