The kriega ones are very nice,, I have a regular Hydrapak,, which is the bladder the kriega uses,, no odd taste and you can turn them inside out for very efficient cleaning.. lasts a long time.. I like the kriega bags better than the current hydrapak bags,, and there is a ooglia line that uses the same bladder,, I got the name wrong,, but its close,, Its the same as the KTM ones but no ktm on it,, cycle gear sells them..