The all-new Mainstays NexGen anti-microbial zippered mattress protector is an innovative and stronger fabric alternative to vinyl mattress protector. Get a good night s rest knowing that your mattress protector has no toxic odor. Mainstays NexGen fabric provides water stain and spill physical barrier and is also hypoallergenic! Zippered Closure provides a snug enclosed fit over your entire mattress not just a particular section. Available in Twin Full Queen and King sizes.