Industrial hemp evolved from Northern China at the dawn of civilisation. It was one of the first cultivated fibre plants, as the earliest archaeological record of the use of hemp fibre was found in ancient Chinese civilisations. The mandarin name for hemp is Má 麻.
Ma is a flat top D-shaped frame handcrafted from Tortoise hemp material. Spring hinges allow a great fit on any sized head and Ma is available in Lime Green or Maroon lenses: