Flow Undies - Moderate Flow

Absorbs 15 ml of blood

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Flow Undies - Heavy Flow

Absorbs 40 ml of blood

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No chemicals or silver ions

Wear up to 10 hours

How to wash your Flow Undies

1. Rinse in cold water after use.

2. Handwash or throw in the machine, using a delicate cycle and cold temperature (maximum 40°C).

Wash with similar colours. Remember, cold temperatures are best at rinsing out blood stains.  

Do not use fabric softener or bleach.  

3. Hang dry only! Do not tumble dry or iron.   

How to wash Flow Undies


Flow Undies look like and are worn just like regular underwear. In addition to being stylish and comfortable underwear, they are expertly designed to absorb menstrual blood and lock it inside. They can be used as your only protection or together with a menstrual cup for extra safety. After use they are washed, dried and ready to be used again.

It all depends on how heavy your menstrual flow is. You should change them when they feel wet. They can be used for at least 6 hours.

They will last at least 50 washes if you follow the laundry instructions.