Well, it don't say original denim anywhere it does however say "Demi". And I don't know for sure, I bought two off if a lady that said they were 100% authentic but I decided to further investigate and found that in most or all authentic Dolce bags there would be a hologram rainbow and I don't see a hologram rainbow or any rainbow for that matter. So in all honesty I truly don't know. I don't believe it's authentic but I'm not as familiar w Dolce bags as I am other brands.