queen size bed sheet set 4 pieces, cotton polyester blend percale queen bed sheets -- anti-wrinkle, breathable, crisp and refreshing feeling cotton rich bedding sheets elinen <b>1.made in green by oeko-tex</b><br> made in green by oeko-tex is a traceable consumer label for products made with materials tested for harmful substances, made in environmentally friendly facilities and made in safe and socially responsible workplaces. <br> the made in green label can be awarded to all kinds of textile products such as garments, home textiles, or furnishing materials for decorative purposes. <br> each item with the made in green label features a unique product id and/or a qr code allowing you to trace the article’s production. each product id gives you visibility into the various stages of production as well as the countries in which the textiles were manufactured. <br> <b>2.what are cotton rich bed sheets? </b> <br> cotton rich bed sheets are sheets that are made of a blend of materials, mainly cotton and polyester. any type of sheet labeled "cotton rich" is obviously going to be made primarily of cotton. cotton rich mixtures started to appear and became increasingly popular. this inclusion of polyester is believed to prolong textile life as polyester does not weaken with high levels of bleaching and this small proportion improves both the fabric's tensile strength and its tear strength. the benefits of polyester lie in its superior strength to cotton and in its ability make the fabric more stable thus reducing the amount of shrinkage that a cotton-rich textile will suffer over multiple laundering when compared to 100% cotton. however, to achieve this reduction in shrinkage, the fabric needs to have polyester in both the warp and weft. <br> perfect bedding sets for adults, kids, toddler, teen girls and boys. our 100% no questions asked, no hassle money back or replacement guarantee is the best in the business. order now! <br>