Introducing our new release for (not only) this summer — menstrual swimwear with merino wool, now available with higher absorbency 2 out of 5 drops! They provide greater confidence without compromising comfort or style.
This sleek model in the most popular classic mid-waist cut features a functional pad with low to medium absorbency, reliably managing light bleeding or mild incontinence. It can also be used alongside a menstrual cup or tampon. Thanks to a waterproof yet highly breathable membrane, menstrual flow stays sealed inside the functional pad. The touch layer of the pad is made with merino wool, naturally antibacterial and breathable, helping to prevent vaginal infections while offering maximum comfort. The pad feels dry to the touch even when fully saturated, which is a benefit you’ll appreciate after leaving the water.
The high-quality swim fabric, made in Italy, is smooth and stretchy. It dries quickly and offers sun protection. From the outside, our functional swimwear looks like regular swimwear so their secret stays hidden inside. The stylish, elegant design will boost your confidence whether you’re at the pool, the sea, or a spa.
Experience a new level of freedom with worry-free movement — even on your days!
The bands will shrink slightly after washing, so take this into account when trying on new, unwashed panties. When choosing the size we recommend to follow the measurements in our size chart, in case of any doubts please contact us via the contact form.
The swimsuit features a classic mid-waist cut. The more deeply cut leg openings, edged with ultra-flat bands, provide comfort even for wider thighs. The functional pad, with a touch layer of the softest merino wool, is extended at the front for complete protection. For total discretion, the pad’s attachment is invisible from the outside of the swimsuit.
The cut is versatile. You can wear it low on the hips, which is ideal for women who prefer a lower rise. Alternatively, worn in the classic position, it suits those who prefer a mid-rise fit.
Inner layers:
1) 100 % merino wool – mulesing free
country of production: Czech Republic
OEKO-TEX STANDARD 100 class II. certificate
2) 100 % polypropylene
country of production: Czech Republic
3) 100 % polyuretan
country of production: Czech Republic
Outer layers:
1) 59 % polyamide, 41 % elastane
country of production: Italy
OEKO-TEX STANDARD 100 certificate
2) 100 % zinc casting
country of production: Germany
OEKO-TEX STANDARD 100 certificate
Your skin won't get irritated from moisture. Our SAYUtech membrane with RET 1.6 is highly vapour permeable.
The touch layer is made of the finest Mulesing-free quality merino wool in 16.5 micron yarn. The swimsuit feels dry even after getting wet.
Ultra thin functional pad is indistinguishable from ordinary swimwear.
Outer quick-drying material with UV protection.
SAYU panties contain no PFAS, active silver or other added chemicals.
Machine wash before first use to activate the absorptive capacity.
✓ Soak in cold water after use
✓ Dark and light colors should be soaked and washed separately
✓ Rinse under running water; lanolin soap may be used to aid this step if desired
✓ Machine wash at 40 °C, max. 1000 rpm spin cycle
✓ Washing gel for wool, washing bag for delicate laundry
✓ Let dry loosely e.g. on a rack
× Don’t wring, twist or rub
× Don’t use cosmetic soap, bile soap, curd soap
× Don't use standard laundry detergent or fabric softeners
× Don't tumble-dry; let dry away from direct sunlight
