Blenheim Fitted Sheets are made from 100% Cotton Percale for a classic crisp and fresh appearance that feels undeniably luxurious to sleep under. Our cotton percale uses fine yarns and our innovative finish which features a built in stain release and increased tear strength to ensure the product looks and feels like new for longer. 200 thread count 115gsm. Our fitted bed sheets include a coloured ID thread in the selvedge to assist with size identification; single - blue, double - red, king - gold and super king - green - important when time is an issue.