Micro Polymer fabric for small dust trap,Protection liquid & water repellent Washable and reusable. Comfortable Breathing. SIZE : One size Never hurt your ears ,Adjustable loop. Unisex Face Mask Color : BLACK, WHITE, NAVY BLUE Pre-wash before first use Gentle hand wash or machine wash It reduces exposure to dust, pollen, mold, pet dander, allergies, fog, smoke, ash, crafts. Suitable for indoor or outdoor travel, hospitals, trains, airports, streets and any other public places.