MARTEX MILLENNIUM 300 Blend Sheet is 60% Cotton/40% Polyester in Fresh White, our cleanest fresh looking white. A 2" lock-stitched hem prevents unraveling and fraying, and requires little to no ironing with a crease-resistant finish. This sheet is Oeko-Tex® certified for textile safety and purity. This Twin XL Flat Sheet is measuring 69"X115" cut size and 66" W x 109" L finished size, featuring navy hem thread for easy sorting of twin size sheets.