Heavy Duty Mattress Storage Bag HIGH QUALITY MATERIAL: Heavy duty polythene for durability and protection. KEEP CLEAN: Resistant to external wear, including dirt and abrasions. A great solution for storing or moving mattresses. PRACTICAL: Easy to slip in with one open-end that can be folded and sealed with tape. DURABLE AND HYGIENIC: Keep your mattress dirt, dust and moisture-free with our waterproof storage bag.