
The bamboo bends in every season and breaks in none. That is precisely what the scholar carried with him.
Jang-i's Bamboo Tumbler is part of the Sagunja (사군자, Four Gentlemen) series — the four plants that defined the moral imagination of Joseon's scholar-class. The Bamboo (대나무, Daenamu) is inlaid leaf by leaf from deep-sea mother-of-pearl using the Najeonchilgi (나전칠기) technique: each piece of nacre cut and positioned by hand, then sealed beneath natural Ottchil lacquer. The body is double-wall vacuum-insulated SUS 304 stainless steel, keeping contents hot or cold for three to four hours. The iridescence shifts under different light — the same bamboo grove reads differently at morning and evening.
Carried to the desk on a morning that deserves a better vessel, the nacre catches the light as the first hour's work begins. Held at the table, the iridescence shifts with the angle. Given to someone who holds things with intention and expects them to last, this is the kind of object noticed before the shape is understood — felt first in the weight, then seen in the shimmer.
Hand wash only; avoid dishwashers, microwaves, and direct heat. Each piece is unique — the inlay pattern will not repeat exactly. Handcrafted in South Korea by Jang-i, in the tradition of Korean Najeonchilgi lacquerwork.