Checkered cloth menstrual pads, 23cm, 7-layer, fully waterproof, set of 4. With 7 layers (absorbent material: 4 flannel layers), you can use them with confidence during the day during your period. Are you worried about urine leakage from sneezing or small movements? If it's a small amount of leakage, these cloth pads will eliminate the worry of staining your clothes, giving you peace of mind. Cloth pads can be washed and reused many times, making them economical. The W-gauze used on the skin-facing side is triple-washed (wrinkle-processed) and twice as thick, making it very soft. With increased heat retention and absorbency, they feel very comfortable. The skin-facing side is 100% cotton, so it's recommended for those who are concerned about odors or skin problems, and for those who are trying to conceive as it can improve coldness. Size Length x Width: Approximately 23cm x 18.5cm When worn: Crotch width 8cm (There may be some variation.) Materials Skin-facing side: W-gauze 1 layer Washer processing Absorbent material: Center part Flannel 4 layers Breathable waterproof sheet: Full surface 1 layer Underwear side: 100% cotton 1 layer Plastic hook 7-layer construction. For washing, hand wash gently with water or lukewarm water, or lightly rub, then wash in the washing machine. They will shrink slightly when washed. Please try them out! For bulk purchases, we will discount ¥100 for each additional set.