If you want to use it as a cross body bag the strap is both comfortable and extendable. The Velcro straps at the back allow you to attach it to your belt, or they can be used as handy fasteners for dog toys or a ball chucker. The metal D clips are to feed your imagination. I use mine to clip a panic alarm and a water bowl but they can hold toys, lip balm, keys, etc. They aren’t designed for clipping dogs to and could rip if used in this way.