Heaven-Earth Encompassing Sleeves Feat 4Arcane Extradimensional Magus Source Tian Xia Character Guide pg. 113
Your magic extends to your garments. During your daily preparations, you can weave magic into a single suit of fine or high-fashioned fine clothing with long sleeves or a train, such as a robe or cloak. This clothing becomes a set of
sleeves of storage, allowing you to store items in either the sleeves or the train (you choose which during your daily preparations). This treatment also makes the clothing more durable; its
Hardness increases by an amount equal to your level, and its Hit Points increase by an amount equal to twice your level.
These benefits end if you prepare a new set of clothing, if someone else attempts to wear the clothing, or if you lose ownership of the clothing. When it ends, all items stored within the clothes fall into the nearest available space.
At 9th level, the clothing becomes greater sleeves of storage instead.
Traits
Arcane: This magic comes from the arcane tradition, which is built on logic and rationality. Anything with this trait is magical.
A creature with this trait is primarily constituted of or has a strong connection to arcane magic.
Extradimensional: This effect or item creates an extradimensional space. An extradimensional effect placed inside another extradimensional space ceases to function until it is removed.