1. High-density fabric weaving, effective light blocking
2. Three-dimensional cutting, one-piece molding, close to the facial contours, no light leakage, 360-degree coverage
3. S-shaped fit nose, 360-degree all-round blackout
4. Breathable and non-stuffy, soft and non-stimulating, comfortable to wear, as thin as 0.1cm
5. Elastic fabric, can be worn by both large and small head circumference
6. Suitable for both men and women
7. Material: nylon
8. Size: M: about 32 x 6.5cm; L: about 36 x 7.5cm