cast 'deep pockets' [cloth or leather container in inventory]
Makes a container grow in size
By casting this spell on a cloth or leather garment, the caster makes the item grow in size by adding dimensional pockets in the item. The pockets are small, dimensional pockets that form inside the object and link to another plane of existence beyond the prime material plane. Objects can then be stored in the dimensional pockets, giving the object more space. Because of the nature of dimensional rifts, this spell will eventually eat away at the material of the item until the entire item becomes a part of the plane the pockets were created from.