“Water linen” is an indispensable linen fabric for evam eva’s collection. The fibers of water linen are less prone to damage than those of ordinary linen, and the texture of the fabric is preserved and becomes more palatable with continued wear. “Water linen” is carefully produced with traditional techniques using yarns twisted by a special technique called water twisting, which has been nurtured over a long history. We traced the production process of water linen on the opposite shores of Kosai and Koto in Shiga Prefecture