Size large 9 12 kgs 21 27lbs based on many years experience we have developed a range of covers which are convenient to use and provide excellent comfort snug fit and great value for money features the preferred choice for many parents fits most sizes and shapes of baby made from super soft cotton blend jersey fabric with a waterproof wipe clean surface on the inside velcro style fastener for a quick and adjustable fit elasticated leg cuffs and waist ensure a snug fit to prevent leaks