I need 100% authentic Balmain Red Velvet Blazer

I need this Balmain red velvet blazer in a size 48 EU which is a medium or 38R US. I purchased this blazer from SSENSE at full retail price. I own this exact blazer in a size 52 EU which is an XL and 42R US. I have the original tags to prove authenticity. I love this blazer but it is too big. I will never do alterations on this blazer so I must sell. I don’t wear my clothes oversized.I am willing to trade. I am also looking for the Balmain X H&M red velvet blazer. Only worn a few times.