Hey all,

I'm looking at a couple UL packs, and I keep getting tripped up on fabrics. I'm coming from an osprey pack, so all of this lightweight fabrics all pretty much sound the same at face value.

Can anyone tell me the difference between xpac, cuben fiber fabrics, dyneema?

I want something that's going to be tear/abrasion resistent (I'm not particularly rough on gear, but I don't have to worry about it, especially in heavily vegetated areas or along tight rocky squeezes). And I really don't love the crackly feel of some fabrics. If it's a difference of an ounce or two for an entire pack, no biggee...I'm not gonna be counting grams, but I am looking to drop a couple pounds from my 4.5lb osprey.

Thanks for the help!