Archival, acid-free 100% cotton paper. Low-VOC foamcore backing and protective poly sleeve. Someday, the light will shine like a sun through my skin & they will say, What have you done with your life? & though there are many moments I think I will remember, in the end, I will be proud to say, I was one of us. So sweet and the perfect Valentines Day gift 💝 for that someone special😊