At Flow, you’ll find absorbent underwear in different absorbency levels, designed to match everything from spotting to heavy flow, so you can move freely and confidently.

There are no industry standards for absorbency (which can be tricky, considering doctors sometimes use soaked period pads per hour to define a bleeding disorder).

Over the past four years, we’ve learned that flow amount is only part of the picture. Factors like flow “speed,” whether you’re a “front bleeder” or “side bleeder” (yes, we’ve gotten pretty nerdy) also affect a product’s absorbency. On top of that, your bleeding pattern and volume aren’t fixed—they can change from cycle to cycle, before and after giving birth.

Our droplet ratings and estimated absorbency are therefore guidelines—the best approach is to test and try:

🩸 or 🩸🩸 Light Flow = Typically for discharge or spotting.

🩸🩸🩸 Moderate Flow = Equivalent to 1–2 regular tampons or approximately 5–10 ml of blood.

🩸🩸🩸🩸 Moderate+ Flow = Equivalent to around 2 regular tampons or approximately 10 ml of blood.

🩸🩸🩸🩸🩸 Heavy Flow = Equivalent to 2–3 tampons, ideal for nighttime use.

Our clothing goes beyond aesthetics and comfort – it makes a statement. Designed by menstruators for menstruators, with the mission to break taboos and improve the cycle experience. Every piece has a touch of ‘rebel’ and reminds us that the body and cycle deserve to be part of the conversation.