Here's what we're delivering: This item minimizes differences in appearance due to the pattern. The item will be shipped with the description "Handkerchief" for your peace of mind. This is a set of three fully waterproof items made with carefully selected Japanese materials. Size: Approximately 22cm (length) x 17cm (width) Layer 1: Flannel (skin-facing side) This set allows you to try unbleached double-sided flannel (only in photos 8 and 9) with a pattern and color (light blue). Unbleached double-sided flannel is a gentler fabric than standard products. There may be small black specks on the surface, which are cotton seed husks and a sign of being unbleached. They are harmless to the body and will come out in the wash. This fabric is the same as that used by a certain famous cloth napkin manufacturer. Layer 2: Breathable waterproof fabric (prevents water from passing through while allowing humidity to escape) Layer 3: Double gauze (underwear-facing side) These are fully waterproof and can be used for a wide range of purposes, including sweat, minor leaks, vaginal discharge, and menstruation (due to individual differences, we cannot guarantee against leaks). They can be used comfortably for warming activities, fertility treatments, during sensitive pregnancies, and by those experiencing menopause. #HIKARIE's Room