Cotton/Polyester. Flat shopping bag made of 75% recycled cotton / 22% recycled polyester / 3% other fibers (Ecume, Shale Green), 75% recycled cotton / 20% recycled polyester / 5% other fibers (Flint Grey), 67% recycled cotton / 30% recycled polyester / 3% other fibers (Black Night). 3-cm wide handles for greater comfort.