The sequin elements that appeared most often in the collection were in fact defective items that she had found in a factory. She chose to name the collection Body Buffers, "I think my anxiety was being absorbed by these materials and my creation."

Xi enjoys collecting materials and giving them a new life with design, as the materials themselves become her inspiration. During her study abroad, she even experimented with bacterial culture, spent over three months cultivating a batch of bio-leather.

Her journey of materials exploration didn't stop there, later she tried applying hooks for curtains, cleaning sponges, and even makeup sponges and powder puffs into designs, also transformed non-traditional materials such as recycled rubber, plexiglass or heat shrink tubing into textiles.