I GUARANTEE THAT THESE SHOES ARE 100% AUTHENTIC.WE BUY DIRECTLY FROM UGG!!!*These are overstocked shoes! The inside size tags are marked with a red marker to prevent returns at a retail store. Some may have a product ID sticker on the bottom of the sole that can be removed. These are new as in never worn however do not have a box so they may have a little bit of wrinkling or scuff marks.