That is for hunting I have an extra string, stringer, change out heads for what I don't have on the arrows, Extra tab, arm guard, extra screw in hooks to hang stuff in the stand, extra pull of string. I could put a lot more, but don't like to hunt for stuff, have things that will rattle on each other or add too much weight.
For fun shooting in the summer I have an extra string, stringer, change out heads for what I don't have on the arrows, Extra tab, and bottle of water or gator aid in the bottom of the quiver. A bottle will set right in there with your field point or blunt arrows just setting and not stuck in the foam. Works great and there is a drain hole for the condensation or spills.