This is a set of 4 fully waterproof cloth pads with a Japanese pattern. They have 7 layers (absorbent material and 4 flannel layers), so you can use them with confidence during the day during your period. Are you worried about urine leakage from sneezing or simple movements? If it's a small amount of leakage, these cloth pads will eliminate the worry of staining your clothes. Commercial products become expensive if you use many of them every day. Cloth pads can be washed and reused many times, making them economical. The W-gauze used on the skin side is triple-washed (wrinkle-processed) and twice as thick, making it very soft. With increased heat retention and absorbency, they feel very comfortable. All materials are 100% cotton and do not irritate the skin. They improve coldness and are also recommended for those trying to conceive. Size: Length x Width: Approximately 23 cm x 18.5 cm When worn: Crotch width 8 cm (There may be slight variations.) Materials: Skin 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 may shrink slightly when washed. Please try them out! For each additional set you purchase, we will discount ¥100.