queen size bed sheet set 4 pieces, cotton polyester blend percale queen bed sheets -- wrinkle free, 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, <br> made in environmentally friendly facilities and made in safe and socially responsible workplaces. <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.<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. <br> any type of sheet labeled "cotton rich" is obviously going to be made primarily of cotton. <br> 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.<br> 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. <br> 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. <br><b>3.what different between cotton and cotton rich </b><br>cotton rich sheets have good elasticity and good wear resistance in both dry and wet conditions. they are stable in size, small shrinkage rate, basically non-deformable, straight and not wrinkled. easy to clean, fast drying features<br>full cotton sheets are woven with cotton. they are soft and thick. cotton rich sheets are filled with polyesters 40%, which are slightly harder. slightly cool ,crisp and refreshing feeling.<br><b>4.satisfaction guarantee</b><br>our 100% no questions asked, no hassle money back or replacement guarantee is the best in the business. <br><br>order now!