Material: polyester Features: Non-slip,banding hair, perspiration absorption, antisudorific, the elastic braid is of appropriate tightness, so it wears more comfortably. Great for women & men working out or sports fitness exercise, like Yoga, running, cycling,jogging, walking, hiking, basketball, softball, golf, volleyball, soccer... Tile size: about 24 cm * 8 cm / 9.44 * 3.15 inch Head circumference:50-60cm/19.6-23.6"