Ultra Marathon hydration backpack

mark thatcher wrote (see)

the Nathan packs are great - strangely enough I have a nathan synergy for sale - dual chamber bladder - only used twice...

Looks a great pack, great idea to have a dual-chamber hydration pack, but not quite what I'm after as mostly looking for dual bottle options. Hope you find somebody to take it off your hands.

Oooh, just had a look at that, and the dual chamber and dial really appeals... Obviously I've some questions  aimed at Mark...

- one of the attractions of the Salomon is the fastening system on the front, how would the nathan compare?

- it does look quite big (could be the pictures) how is it when worn

- how much would you be looking for it?

Tony