HealthGuard FDA/Health Canada Registered Bed Bug Protection Mattress/Box Spring Encasement, Twin Extra Long, White Chemical free design to help you and your family rest free of concern about Bed Bugs and other pests that make your sleep environment their home The HealthGuard Bed Bug Encasement fully encases your entire mattress and/or box spring for total protection and peace of mind Constructed with a breathable advanced tight fitting stretch knit fabric to reduce bulk and to promote better pad, protector and sheet fitment Protects before, during and after infestation; Velcro self-locking zipper and internal flap add an additional level of security against penetration Fits Twin XL mattress and box springs; Easy Care machine wash/dry; HealthGuard FDA Registered Mattress and Pillow Protector also available thru Amazon