Quiver

A Quiver is a specialized bag that holds only arrows, for use with a bow. Capacity varies, but in the majority of Zelda games, the quiver can be upgraded after completion of sidequest events at least twice over the course of the game.

Not all games that include arrows mention a special bag for them. In A Link to the Past for example, a Great Fairy can increase Link's arrow carrying capacity, but the game never specifies how.

Quiver Locations
Note: The following list is arranged by the location of upgrades. The upgrades can be obtained in any order, unless otherwise specified, but the upgrade level's order is unrelated to it. Therefore, the first upgrade collected (regardless of which one) will always be the medium-sized Quiver, while the last upgrade will be the largest Quiver.