These sewn hats originated in the 1400s and became widespread throughout Japan during the Edo period when the Kaga Domain encouraged their production. Using high-quality reed grass, they are used for sun and rain protection during farm work, and as tools in traditional events and festivals throughout Japan.

• Technology/techniques/raw materials

  Technology/techniques/raw materials

  Technology/techniques

  1. The "umbrella frame" shall be constructed using the following techniques or methods:
  (1) The outer ring bone is made by attaching "claws" to form a ring and then overlapping the "claws" to fasten it.
  (2) The "backbone" is made by thinning the overlapping part of the top of the head and inserting it into the "outer ring bone".
  (3) When bending the rod, heat the "core" before bending.

   

  2. "Hat stitching" shall be performed using the following techniques or methods:
  (1) Put a "trick" on the inside of the hat.
  (2) After the reeds attached with the "nozuke" are smoothed out, the rest is sewn up with thread.
  (3) The top of the head should be secured with a "head restraint".

   

  raw materials

  1. The bamboo used shall be as follows: for the outer ribs, *Phyllostachys bambusoides* or *Phyllostachys edulis*, or a material of equivalent quality; for the inner ribs, *Phyllostachys edulis* or a material of equivalent quality.

  2. The sedge grass shall be Carex japonica or a plant with equivalent properties.