Super Undies themselves are made from strong waterproof material. If you cupped this fabric like a bag and poured water into it, it cannot leak.
But yes - that fabric can under the right circumstances.
If you poured more water in it then the cup has capacity for, it can over flow.
If you dropped one side of the cupped fabric, it could spill out.
This is how leaks happen.
Leaks are usually caused by either fit or absorbency issues. Here’s how to check:
• Fit Issue: If leaks happen around the legs or waist, the underwear may be too loose. A snug fit is key so water doesn't spill out.
• Absorbency Issue: If the entire undies are soaked through, your child is peeing more than the absorbency can handle.
Mar 5, 2025