This bag uses a silky smooth ballistic Nylon with a tough Nylon lining. It's going to last you a long, long time.
The interior is made of amazingly tough coated Nylon packcloth. (Lesser brands use this as the outside of the bag.) Lots of room for all your stuff: Books of Mormon, Preach My Gospel, quads, pass along cards, etc. There is even an internal water bottle pocket for those long, hot days.
The buckles are made of high-strength steel and we only use YKK zippers (that means they're good).
Water Resistance: Ok, we want to say waterproof, but the seams are sealed and water could get in the top. Both the outer and inner fabrics are coated for waterproofness. We can't guarantee it's waterproof, but it will do a pretty good job of keeping your stuff dry.