This little guy is great for carrying pens and other small items in your messenger bag. It isn't quite clear from the description, but the material is nylon mesh somehow glued or fused to clear plastic film. The mesh protects the film from abrasion, but lets you still see inside. The plastic film makes the pouch water-resistant (the zipper can still let in water, and the seam isn't sealed) and more or less dustproof. The plastic film is thin enough to stretch a bit, but is thicker than plastic wrap, and doesn't puncture easily. The zipper is large and sturdy. Hard to see how you could improve it.
6-10 Annual Trips
Bottom Line Yes, I would recommend this to a friend