Nice. For canyon country backpacks I've found X50 to be good (the pack I've been using last couple years I made from VX50 which is same thing but dacron vs Kevlar X-Ply threads....the X50 is even better because they are flatter/less of an abrasion point). Fully woven dyneema is orders of magnitude better than anything else but $$$ and not very available. The dyneema laminates Ive found to not really have enough abrasion resistance for desert trips.
As someone who is very weight conscious I feel pretty strongly that pack fabric is one of the absolute worst ways to save weight. A pack typically uses a square yard or so of fabric so you're saving only a few ounces for something you're going to put holes in vs something super bomber.