Finished with a Micro-Fresh treatment that inhibits the growth of bacteria for at least 50 washes, helping to keep your little one's bedding fresher for longer. Fully waterproof & machine washable up to 60 degrees centigrade. This mattress protector has a luxuriously soft 233 thread count cotton cover for ultimate comfort & features a knitted polyester skirt. Contains recycled fibre.** Please note: Packaging may differ but quality remains the same.**