3x layer cotton covers reusable grey (pack of 2) with filter slots pegasus <p>mouth cover exterior cotton with 2 layers of interior soft breathable muslin fabric handcrafted to avoid dusk in and around the environment.</p> <p>feature:<br /> ⭐windproof<br /> ⭐breathable<br /> ⭐reusable<br /> ⭐stretchy fabric<br /> ⭐3 layers + slot to put carbon filter pads </p> specifications:<br /> color: grey<br /> material: multi layer cotton + muslin<br /> gender: unisex<br /> package include:<br />2 pcs grey<br /> facial coverage size: 6.3" x 9"<br /> application:<br /> suitable for cycling, camping, running, travel, climbing and daily use. protect you from fog, haze, vehicle exhaust, passive smoking, etc.<br /> <br /> note:<br /> 1. it only needs to be gently rubbed to wash it to remove dust after every time you use it. detergent is not recommended.<br /> 2. don't bleach, iron or dry the anti-pollution cover with dryer as it may destroy the fabric.</p>