Our period-proof underwear come in different absorbency levels, much like disposable menstrual products:
5 ml Mini ≈ ½ tampon/panty liner
10 ml Light ≈ 1 tampon/pad
20 ml Medium ≈ 2 tampons/pads
30 ml Mid-high ≈ 3 tampons/pads
40 ml High ≈ 4 tampons/ pads
50 ml Super ≈ 5 tampons/ pads