Bamboo, recycled felt made from PET bottles;Made with econscious prInciples in mind, this set is a testament to style, functionality, and environmental responsibility; Bamboo outer cover and recyled felt inner cover with pocket flap; holds refillable lined paper journal (5.5"w x 8.1"h); Pen loop with Included bamboo pen, black ink; Product Size: 8.5"w x 6.1"l x 0.9"d;