I'm planning to replace my pack at some point this year, and the Arc Blast has definitely piqued my interest; however, I haven't seen a single review by a female! From the photos I've looked at, the pack seems to be fairly wide and square, which makes me concerned about the fit–I much prefer a narrow pack, as I have a fairly narrow frame (5'5", 110#).
I love the idea of the trampoline back and the semi-external frame. That said, I've tried the Osprey Exos series and those packs were a no-go for me. Weird fit and too little padding in the hipbelt, which totally defeats the purpose of a framed pack with supposedly excellent load transfer, IMO. How do people feel about the fit and padding of the hipbelt on the Arc Blast?
Last but not least, I've been using Dyneema packs ever since I started backpacking as a teen and I am skeptical of cuben's durability when used as a load-bearing material. I've encountered a number of hikers using first-generation cuben packs that basically disintegrated after a few months of continuous use. Does the reinforced "hybrid cuben" fare better? How much better? If there's anyone out there thru-hiking or otherwise using a cuben pack for extended backcountry travel, I'd love to hear how the material holds up to abrasion, punctures, and general wear.
Thanks!

