Our baby burp cloths are made with 100% cotton to make sure the products are super soft and premium quality. They are super breathable compared to store-bought baby burp cloth. Each burp cloth is top-stitched for extra durability and a professional finish. PRE-WASHING PROCESS: 200% up by the pre-washing process increases absorption of liquid by wrinkling than ordinary cloth. After washing it there was no fading or odor making our muslin burp cloth not only soft and fluffy but also reducing the shrinkage.