What you want to ask is "What should I do if the down jacket I bought is said to be 80% down, but there is no label on the trademark?" You can apply for a return.

It is very common in online shopping that the amount of down filling is not indicated. This kind of down jacket that does not have a detailed label on the down content is definitely not a garment produced by a regular manufacturer. The down content does not meet the national standards, which means that its cost is relatively low. Down jackets with guaranteed quality must be clearly marked with the percentage of cashmere content and the grams of cashmere content. Therefore, in this case, it is suspected of consumer fraud. You can apply for a return or have it appraised by the Market Supervision Bureau.