I purchased this about three years ago and used it only once in the field. You put your arms through it, like you're wearing a backpack in front of you, and carry it on both shoulders, right? Unfortunately, it didn't match my style, so I've kept it stored at home since then. There's almost no damage to the fabric or anything else on the exterior. There's a bar on the outside that makes it easy to replace the line. It seems useful not only for fly fishing, but also for tenkara and lure fishing in mountain streams. Thank you!