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 60-cm handles with their 4.25-cm wide ribbon are designed for more comfort. The inner zipped pocket enables you to securely store your keys and phone.