Making old hats has a retro feeling. It's no use doing an old wound. Whatever. Hats are mainly classified according to hat-making technology, hat-making materials and hat functions or styles.

Hat-making techniques include sewing, felt hat making, knitting, crocheting and shaping.

Hat-making materials include: textile materials (fabric, wool, yarn), felt materials (wool felt, rabbit felt, blended felt, etc.), fur (animal fur, artificial fur), leather (animal leather, artificial leather), grass/grass braid (natural grass, grass braid, artificial grass) and other materials.

Hats, fashion hats, caps, baseball caps, cool hats in summer, snow hats, standard hats, work hats, protective hats and others.

Sewing hat: generally speaking, it refers to a hat made mainly by sewing technology.

Sewing wool hat: a hat made of wool or blended fabric and made by sewing process (also called front hat).

Sewing fur fashion hat: a hat made of animal fur as the main raw material and mainly by sewing technology.

Sewing straw summer cool hat: a straw hat made of natural grass or artificial straw as the main raw material through sewing process.

Sewing sheepskin baseball cap: a baseball cap made of sheepskin as the main raw material by sewing.

Felt hat: a hat made mainly by felting technology.

Felt hat: A hat made of wool by felting process.

Knitted hat: a hat made mainly by knitting technology.

Knitted wool hat: a hat mainly made of wool or blended wool by knitting technology.

Crochet hat: a hat made by crochet machine or hand crochet process.