After checking out heaps and trialing a few alternatives these are one of the toughest, well established and most user freindly at a good price.
This 100% waterproof travel bag has all the advantages of an easy to use dry bag: its flexible and variable packing volume adjusts to any situation.
I admit I was skeptical... I even rang Andy to double check the correct closure method... but this bag has been fantastic. Absolutely waterproof under a variety of dismal and drenching conditions. Easy to pack, big wide opening. Easy to secure to the bike. Great "above and beyond" service from Andy and the crew to get it to me in time for a trip I was taking. Thanks all!