Our bed bug-protective mattress Covers with a Zipper and velcro. The outer shell is made from 100% White Knitted Polyester with lamination, and the bottom with 100% Knitted Polyester. These Encasements are ideal for Homes, Hospitals, Nursing Homes, and hotels. It protects you, your family, guests, and patients from Bed Bugs. Buy now our Bed Bug Protective Mattress Covers. Available in various sizes. If you have any questions, please don't hesitate to contact us.