It seems no two manufacturers use the same language to describe their products. To help you sort it out, we’ve developed a standardized Total Capacity Rating system that we use across all brands and incontinence products we sell.
At a glance, the rating shows a product’s capacity to absorb and hold bladder and bowel leakage. "Heavy" includes higher absorbency pads, underwear and briefs, or diapers that have a capacity rating of 4 out of 6, absorbing up to 30 oz / 887 ml.