You bought a jacket in two sizes because you were unsure which size would fit you best.
Got that.
The easy thing to do would be to send the other one back and get your money back quickly and certainly.
The difficult thing to do would be to try and sell it online with no certainty that it would be sold at all.
I didn't realize that you like to provide a public service to complete strangers on a forum by trying to pass along an item at a discounted price.
More power to you for that.
BTW, bumping a thread without a price change is prohibited on this forum fyi.
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