What kind of button is the 'natural horn intaglio button' mentioned in the blazer description?

Intaglio refers to a method of engraving patterns or letters by carving into the surface. Like a seal stamp, the letters are recessed inward, so when light hits at an angle, shadows form in the carved grooves, revealing the letters. Natural horn buttons engraved with LC in this manner are attached to the sleeves and front closure of Classic Blazer_Black, and these buttons were developed directly by the brand^[1].

Horn buttons are a natural material composed of keratin, the same substance as human fingernails or hair. Unlike buttons stamped out from a sheet of plastic, depending on which part of the horn was cut and used, the lightness and darkness of the base color, the direction of the grain, and mottled smudge-like patterns appear differently for each one. Therefore, it is a characteristic of this material that even buttons attached to the same garment do not have completely identical colors.

Regarding care, LOW CLASSIC advises following the instructions on the care label inside the garment^[2]. Although separate handling instructions for horn buttons have not yet been confirmed, keratin materials are generally vulnerable to heat and prolonged moisture, which can cause cracking or warping. Therefore, it is safer to avoid placing an iron directly onto the buttons, avoid soaking them in water for a long time, and after washing, dry them in the shade rather than under direct sunlight or in front of a heater. Informing the dry cleaner in advance that the buttons are made of natural material is also a good approach.