I'm about to purchase a 5L (?) dry bag from alpkit to fit a Salsa anything cage, but wondered if anyone has experience of them or is there an alternative option worth considering? I'm really wondering if there's a fatter/wider bag which works well or should I go with alpkit.

I used to use both 5L and 8L Alpkit bags in Anything cages. These were pre- Airlok extra but were very similar (didn't have the extra tie points). The bags never caused any issues ... just the cages*

*now all sorted I'm sure.

Cheers for the advice stu. I think I'll go with 8L Xtra which for obvious reasons makes more sense than the 5L. I'm hoping the problem these cages had is now fixed - I've got the new updated 2014 version so hopefully they'll last

I have some of the new ones - if you do an image search, you can see that they are a lot more burly than the old ones. Also heavier too but there you go.

Going by what I've read, welding is now all the way down, whereas previously it was around the fixing points only. So far, these new ones have been fine.