There is described a temperature treatment apparatus comprising: a body made from a flexible and expandable material for attachment to a predetermined region of the human body requiring treatment, the body having a space formed therein; and a temperature radiating element shaped to be received within the space of the body and being configured to have a soft and malleable shape profile to apply temperature treatment to the predetermined region of the human body; wherein the temperature radiating element comprises an inner pouch containing a first phase change material that is insertable within an outer pouch comprising a second phase change material, such that, upon insertion, the inner pouch is substantially encapsulated within the second phase change material of the outer pouch.