100% Polyester Knit BED BUG PROOF PROTECTION - Protect-A-Bed six-sided fully waterproof encasements provide a complete barrier against bed bugs, dust mites, and allergens. They offer peace of mind and mattress protection, preventing infestations with bed bug and dust mite proof Bug Lock technology​ LIQUIDRY LAYER - The six sided fully waterproof encasement features Liquidry waterproof layer to offer an impenetrable barrier that is highly breathable and whisper quiet, protecting your mattress for long-lasting protection without damage ​ ODOR-FIGHTING TREATMENT - Featuring FUZE antimicrobial protection & a breathable fabric that promotes airflow, this mattress cover provides long-lasting protection from odors & moisture. Liquidry layer provides a quiet sleep without plastic noise or discomfort PATENTED PROTECTION - Featuring the Bug Lock patented bed bug-proofing system, this bed bug mattress cover offers an extra layer of security against pests while providing a breathable, comfortable sleep surface ​ EASY CARE & VERSATILE FIT - Fits mattresses ranging from 6" to 11" deep with stretch corners. Machine washable in hot water (130°F) to kill dust mites and bed bugs, making it simple to maintain a clean, healthy bed ​