The all-new Mainstays NexGen anti-microbial fitted mattress protector is an innovative alternative to vinyl mattress cover. NexGen fabric provides waterproof stain and spill protection and is also hypoallergenic! For a stress-free solution to long lasting mattress care NexGen is the way to go! Available in Twin Full Queen and King sizes. This mattress protector has a fitted elastic band on the corners and fits most beds that are Twin in size.