These are the upper limits for each pad, based on testing with water. The pattern of flow of either menstruation or bladder leakage can mean your mileage may vary somewhat.Interesting fact: As much as it can seem like a lot, in reality, average total blood loss over an entire period is actually just 30-60ml!Upper Limits of Absorbency for each pad:Postpartum/Super Pad: 200mlExtra Long Heavy Pad: 100mlLong Heavy Pad: 75mlLong Moderate Pad: 60mlStandard Moderate Pad: 45mlStandard Short Light Pad: 25ml