... reduces environmental impact. 3) Lightweight: Lighter and more pliable for easy packing. 4) Special Design: Straightforward, versatile and ... organized in a waterproof100% Waterproof roll-top backpack suitable for quick submersion due to it's unique 'High Frequency' ... , moisture proof, dustproof, stain proof, products can be use for sailing, diving, boating, fishing, climbing, camping outdoors, river ...