1. Material: lycra fabric 2. Suitable for head circumference: 52-58 cm 3. Applicable scenarios: leisure, shopping, travel, business trip, hiking 4. Quick-drying and breathable, refreshing and comfortable 5. Not easy to deform, wear-resistant and not hooked 6. The super-elastic fabric is not tight to wear, refreshing and anti-perspirant 7. Weight: 14 grams 8. Dimensions: 24x8x3 cm