I purchased this at M&M'S Las Vegas in Las Vegas, USA, but I am listing it because I have no plans to use it. Since I purchased it locally during my trip, it is definitely an authentic product. Size: L ============================== Immediate purchase and silent purchase are welcome. I will strive to provide a courteous response. Please purchase with peace of mind. Non-smoker, no pets. Please leave a comment if you have any questions. Please refrain from excessive price reductions or inquiries about the lowest possible price. *Even during price negotiations, priority will be given to the person who completes the purchase procedure first.