: Certain non-combat pets from the Crown Store (like the Bristleneck War Boar ) provide a permanent +5 inventory slots per account.

In The Elder Scrolls Online (ESO), you can buy backpack space directly from the inventory UI or by visiting specific merchants. Each upgrade adds , up to a vendor maximum of 140 slots . Where to Buy Upgrades eso where to buy backpack space

: Visit any Banker to purchase account-wide bank storage in 10-slot increments.

: Typically outside near the market or bank area. : Certain non-combat pets from the Crown Store

: As of a recent update, you can upgrade directly from your inventory screen by clicking the "Upgrade Bag Space" button at the bottom of the UI.

New Player Guide: Inventory & Items - The Elder Scrolls Online Where to Buy Upgrades : Visit any Banker

: Visit a Stablemaster once every 20 hours to train "Carry Capacity" for 250 Gold . This adds 1 slot per lesson, up to 60 additional slots .