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Material: Polyester Cotton
Free size: 21.5*14.5*1cm
Features: Reusable, Washable, Breathable
Made by high quality polyester Cotton material, 3 layer fabric protection, breathable and comfortable.
Activated carbon absorbs microparticles for a long time, and double-layer electrostatic filter cotton effectively blocks particles
Adopts air layer fabric, 2cm thickness, which is thicken than sponge or ice silk fabric.
1. 100% Brand new and high quality.
2. Washable, can be repeatedly used.
3. Collapsible, you can put it inside your pocket and bring it anywhere.
4. Elastic widened ear strap design, wear easily, stronger and more comfortable.
5. ABS cold flow breath valve, helps to remove the air and reduces the the accumulation of heat and moisture, making it more comfortable to wear.
6. Free Size: for Men Women and Kids.