This Udon noodle’s a little thinner than normal.

Udon noodles come in several different thicknesses. They also have different names depending on their thickness. According to the JAS standard(Japanese Agricultural standards), “Udon” is defined as having a diameter of 1.7mm or more, “Hiyamugi” as 1.3-1.7mm, and “Somen” as less than 1.3mm.