I ordered a small because that's what I wear. I wear many different brands and order and buy small. Urban Republic Junior Women's Down Alternative Jacket size SMALL fits like an XXS. I also did not receive any info in package on how to return the Jacket to Garment Avenue. I had to call Walmart.com to get Garment Avenue's phone number. When I called Garment Avenue's phone number, 646-820-0704, no one answered the phone. I was able to leave a message but Garment Avenue did not identify who they were on their voice mail. Did get a call back but I do have to go through the hassle of returning by mail! I felt confident that I would like the jacket but had no idea that Garment Avenue would be so off with their sizing!!