These 100% cotton percale pillowcases are woven with intention for warmer sleepers and are perfect for those looking for a cozy sheet without the heat. Woven in the textile region of Guimaraes in northern Portugal, our washed percale is certified by OEKO-TEX to be free of harmful chemicals, so you can sleep soundly knowing you have the best comforts. The percale weave allows the pillowcases to be cooling and breathable, while the garment wash brings another level of softness and comfort.