Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Is amazon selling knock-offs?

I have old pairs of Hanes that I bought in stores recently and the pack I received from Amazon doesn't compare in regards to quality of material. The band is not as durable as the packs I bought in stores. Also, I don't know if this just happened to me but I bought a pack of mediums and my pack came with 3 mediums and 1 extra large... Definitely returning this item asap.Also had issues with a pair of Levi 527 jeans I bought off Amazon which turned out to be knock-offs which is why I question buying clothes off of Amazon now.