Requip (換装 (レキップ), Rekippu lit. Express Elementary) also known as Re-equip (Del Rey) is a Holder Type Magic used by multiple mages.
This Magic allows users to store items in pocket dimensions. Mages who use this Magic can change equipment (weapons, armor, clothes, etc.) during battle, which gives them a high level of flexibility in combat. Erza stated that there is a limit to how much the pocket dimension can store.