Is this as light/tough as the cuben fiber? Do different fabrics handle sharp objects better?

Is there a page that overviews and compares the performance of current fabric technology?

Go to http://www.mountainlaureldesigns.com/ for the best I've seen. Should you wish to do business with Ron (Ron Bell, Mountain Laurel Designs), I can recommend that shop's work. I have several items and have used them hard with no complaints.

best, jcp