Sleepy's Bedding Basics  King Mattress Protector New With Tags- Never Opened. * Viral Barries- features the cdc's highest level (level 4 )of barrier protection ( ASTM F1671) WHICH MEANS THE VIRUSES CANNOT PASS THROUGH FABRICS * Waterproof - miracle membrane is lightweight, flexible and waterproof while allowing air and vapor to pass through. This ensures a safe, clean mattress, even after spills. *Breathable - maximum air permeability encourages air flow to and from the mattress. * Hypoallergenic - promote a healthy sleep environment by creating a barrier against allergens that may work in the mattress including mold, mildew, pet dander and pollen. FEATURES & BENEFITS: Waterproof miracle membrane: Blocks dust mites, allergens, liquids and sweat Viral barrier: Features the CDC's highest level (level 4 )of barrier protection (ASTM f1671) which means viruses cannot pass through fabrics Smooth, quick drying surface: Jersey net polyester fabric provides a cool, dry nights rest. Maximum air permeability: Encourage air flow to and from the mattress Adjustable, secure fit: Adjustable 4-way stretch for any mattress depth Main panel 100% polyester Lining 100% Polyurethane Laminate Skirt 100% polyester