Fitted envelope sheet made of organic combed cotton percale. Feels wonderfully cool and crisp against your skin. Thread count 230 tc. Certified by GOTS (Global Organic Textile Standard). Designed and shaped with deep corners to fit a top mattress with the height of up to 10 cm. Made in Portugal. Percale provides a wonderfully crisp feel, and many associate our percale with the coveted 'hotel feel' - smooth, cool, and luxurious! It's a quality that maintains its delightful feel for many years to come. We weave our percale from 100% fine-combed cotton. This means that the cotton has been combed so that only the long, strong fibres remain. This way we can create a weave of the finest quality that is durable to withstand regular laundering.