Could you explain the meaning of "what you put on your back"?
Native speaker’s answer
Rebecca
"What you put on your back" in this case is referring to the clothes that she wears on her back, so more specifically, it refers to the sweater she is wearing. It is not common to say "what you put on your back" in reference to clothes like shirts or sweaters, but instead, it is more common to say "what you wear".