Cotton: Cotton is smooth and comfy, rendering it perfect for casual clothing and bedding. It feels gentle on the skin but may not be as breathable as mesh. 2X2 mesh indicates there are two openings in one linear inch. It may be one hundred% polyester, that is much less expensive https://www.qicaiknitting.com/resources/what-is-mesh-fabric-properties-how-its-made-and-where.html······