Bottle size is 3.4 FL oz I’ve been using this for about a month, then was gifted the real one for Mother’s Day. I can confirm they smell THE SAME. However, I find this one doesn’t have the staying power as the authentic coco M. Bottle is beautiful. Will arrive in authentic Chanel box (the box from the authentic perfume) To confirm, this listing is for perfume that is NOT coco M.