Our waterproof pro light backpacks are now available in a convenient 12 litre day pack size and are constructed from and ultra lightweight tpu fabrics with a seamless electronically welded construction and a simple to use two way sealing system making it fully submersible this waterproof backpack really should be your backpack of choice from the large front mesh zip pocket with reflective strips to the padded shoulder straps and air flow back panel this feature packed overboard pro light waterpr