Maiswim Menstrual Panties | Leak-Proof Period Underwear
Maiswim Menstrual Panties | Leak-Proof Period Underwear
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Mai Menstrual Panties were created to transform the way mothers and daughters experience menstruation: with absolute comfort, total security, and zero embarrassment. Made from premium deadstock materials, with breathable, hypoallergenic, and odor-free fabric, they are perfect for anyone looking for a more sustainable and truly effective solution.
With an absorption capacity of up to 18 ml (equivalent to 2 tampons), these panties keep you dry and protected throughout the day. The absorbent technology is activated with a simple rinse in water before first use—after that, just wear, wash, and repeat.
Why you’ll love them
- Absorption of up to 18 ml (≈ 2 tampons
- Breathable, hypoallergenic, odor-free fabric
- Made with deadstock — a more sustainable choice
- Total comfort and a soft feel against the skin
- Reusable, durable, easy to wash
- Simple activation: rinse with water before first use
Composition & Care
- Hand wash or machine wash up to 30°C
- Do not use fabric softener
- Air dry
- Activate before first use: rinse with water
FAQs
These panties are designed with built-in absorbent layers that hold up to about 18 ml of fluid, which is roughly equivalent to 2 tampons. This makes them suitable for light to moderate flow days or as a backup on heavier days.
or machine wash in cold to 30 °C water (without fabric softener), then air dry. This helps maintain their absorbency and longevity.
Yes - with their leak-resistant layers and breathable, odor-controlling fabric, you can wear them for extended periods (e.g., during work or sleep). However, how long you wear them comfortably depends on your flow; on heavier days, changing more frequently or combining with other protection may be best (similar to other menstrual underwear guidance).

Why you’ll love them
- Odor-free
- Fast-drying
- Total comfort and soft feel
- Reusable, durable and easy to wash
- Simple activation: rinse with water before first use
- Not your boring average menstrual underwear
Composition
95% cotton | 5% elastane
INNER LINING:
95% organic cotton | 5% elastane
ABSORBENT:
85% tencel | 15% polyester
IMPERMEABLE:
100% lyoncel | 100% polyurethane
Responsibility
- Made with deadstock – repurposed fabrics that already existed in the world
Size Guide




If you’re between sizes, we recommend sizing up for the most comfortable fit