Amazon.com: waterproof breathable fabric
Material: Waterproof, Intermesiate Layer Meltblown Filter Cloth, Soft and Breathable Size: about 17.5cm and 19cm wide, 2m long, 3rolls/set, 1 set can make 18~20pcs Mouth Cover. Color: White & Blue. The fabric kit including 3 layer waterproof and breathable non woven fabric.
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