Adult black border masks product number: 11146 production process: transfer printing product material: Polyester Other Description: [design description] full screen printing [material description] 100% polyester [product performance] it is made of high-quality mesh fabric, with good air permeability, very comfortable and easy to wear, which can prevent the invasion of dust, small particles in the air, pollen, etc. Dustproof, odor proof, washable and reusable. [applicable scenario] it is suitable for cycling, camping, running, traveling, climbing and daily use. Protect you from fog, haze, vehicle exhaust, passive smoking, etc. (non medical mask) [accessory structure] size (excluding elastic belt): 20 * 15cm [washing instructions] the machine is hand washing, quick drying, easy to care and durable. Do not use bleach.