The Billingham Avea 7 pockets are made of 3-layer waterproof canvas or 3- layer waterproof FibreNyte - just like their camera bags.
They also feature fabric-lined closed cell foam padding on the bottom, sides, front and back to protect equipment inside from bumps.
The Avea 7 can be used as side-pockets for many Billingham bags - or as camera pouches in their own right.