Kaku obi , is another obi used by men. A formal kaku obi is about 10centimetres (3.9in) wide and 400centimetres (13ft) long and depending on its material, colours and pattern is suited to any and all occasions from everyday wear to a close relative's funeral. A kaku obi typically is made of hakata ori which has length-wise stripes) and is worn in the simple kai-no-kuchi knot.