Perfect for running, cycling, hiking or other outdoor activities, it's also suitable for daily use.
Features:
- Provide protection: The cotton protects you from dust.
- Material: The anti dust is made of cotton material.
- Size: Folded: L*W: 10*12cm(3.94*4.72in), strap length 8cm(3.15in)
- Stretchy: Elastic strap makes it easy and comfortable to wear, which won't crack and won't hurt your ears
- Comes with 1 mask + 2 filters