Titan Outdoor Products 20L Waterproof Dry Bag.

This water proof bag is a decent size and it is great to take with you anywhere there is water and you dont want something to get wet. This bag is made out of something that feels like a thick pool material  that will survive a lot of damage and wear. To use it all you do is put your things in it and fold the top opening down and then latch the buckle together and it will keep out the water nicely. It also comes with a strong strap so it is easy for you to carry and I love that it is bright yellow so you can not lose it on your trip.




http://www.amazon.com/Titan-Outdoor-Products-Waterproof-Yellow/dp/B0141MUW32