Cotton/polyester. Black night colour 67% cotton / 20% polyester/ 3% other fibers. Ecume color 75% cotton / 22% polyester/ 3% other fibers. Backpack made of recycled cotton and recycled polyester. The 4.25-cm handles for extra comfort in contrasting colours are stitched all around the bag for a touch of originality and greater durability. The bag has a front pocket with a zip fastening.