I've had this pack for several months now & used it on a few missions. It was purchased it to replace a small Condor pack. The nylon exterior is VERY rip & abrasive resistant. The interior is lined with a thick water repellant material similar to whats used on river rafts. Multiple pockets store gear efficient & securely. The main storage area opens up completely & has a clear zippered pouch dedicated to a 10" touchscreen tablet. As said before the exterior is VERY forgiving. I've used it several times as a sandbag to steady the rifle. With just soap and water all traces of blast residue wipe away. Now no product is perfect so here are two suggested improvements. 1. A flap or lip to cover the zippers. On my last mission I was caught in a HEAVY downpour. I'm talking about max 100 meter visual. A little water made it thru the zippers. By no means was I upset by the amount that made it in the bag, i was actually happily surprised. 2. Put release clips on the bottom & side compression straps. I wholeheartedly reccomend this bag as a 48 hr bugout necessity.