This is what Zpack's website says about the Blast:

The pack is constructed from tough 2.92 oz/sqyd Dyneema Composite Fabric (DCF). This material is made with ultra high strength Dyneema fiber on the inside, with a protective layer of 50 denier Polyester on the outside. The outer layer gives it even more strength, prevents fraying, and gives it a nice solid color. The material and design can handle loads up to 35 lbs (16 kg).

This is what the website says about the Haul:

The Arc Haul has all the same design features as the Arc Blast, except that it is made in heavier duty 4.8 oz/sqyd Gridstop fabric. This fabric is a bit thicker and better against abrasion. It can handle a little more weight.

My question is - is the Haul 100% nylon or does it have a heavier outer layer but has a DCF inner layer?