This ceremonial outfit has a distinct front and back and seop (overlapped column on the front), gusset, and collar in obangseak (“five colors”). The body is made of silk in green, the seop in yellow, the gusset in red, and the breast-tie in blue. The collar, sleeve ends, and strings are adorned with gold leaf. Together with dongdari, jeonbok was a military uniform worn by military officials during the Joseon period. This jeonbok was made for a baby boy. Jeonbok with a blue body adorned with gold leaf was worn over durumagi on the baby’s first birthday and during feasts. This sleeveless jeonbok has no collar and has slits on the sides and the back.