The pouches are Rip-Zip Pockets.
They are optional accesserories so I order x 2 as a pair, ship to me together with the DS and a Water Bottle pocket.

Yea, it is a nice piece of [bleep] for 3 days trekking.
When I was talking to Tim Gates of MR, I want a 3-Day Assualt in the first time, but want to add more volumne with the Rip-Zip. He told me the Rip-Zip can't hook on a 3DA as perfectly as on a DS, and DS provide more loads.

Indeed, this is too big for a day trip. Unless you go for hunting.