The aLOKSAK is an element-proof storage bag that prevents leakage and preserves items against damage from water, air, dust and humidity. Memorabilia placed inside aLOKSAK bags does not age. These bags are made of a durable polyethylene blended film and are 100% waterproof to over 70 meters. aLOKSAK can be opened and resealed numerous times. Our bags are considered disposable must be replaced after extended use.