Introducing our latest innovation developed in collaboration with the Technical University — absorbent swimwear with merino wool. Thanks to their unique properties and comfort, you’ll want to wear them all the time!
These luxurious, classic mid-waist cut swimsuits feature delicate Italian tulle side panels and are fully lined with merino wool beneath the swim fabric. This lining helps keep you feeling dry even after you step out of the water. Merino wool is naturally antibacterial and breathable, helping prevent vaginal infections and providing maximum comfort.
The high-quality swim fabric, made in Italy, is smooth and stretchy. It offers quick-drying properties as well as sun protection.
The functional absorbent pad offers low to medium absorbency, rated 2 drops out of 5. It’s ideal for light bleeding or incontinence and can also be used as a backup to a menstrual cup or tampon. Thanks to a waterproof yet highly breathable membrane, menstrual flow stays locked inside the pad. Despite this, the pad remains thin and discreet, that you won’t even notice it.
On the outside, our functional swimwear looks just like regular swimsuits, keeping its secret safely inside. Their elegant design will boost your confidence whether you’re at the pool, the sea, or a spa. Enjoy freedom of movement and carefree moments in the water with our menstrual swimwear.
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, finished with ultra-flat elastic bands, provide comfort even for wider thighs.
The inner swim fabric is fully lined with the softest merino wool knit. The functional pad is very thin and remains completely discreet, invisible from the outside of the swimsuit.
The cut is versatile. You can wear it sitting 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% polyurethane
Country of production: Czech Republic
Outer layers:
1) 59% polyamide, 41% elastane
Country of production: Italy
OEKO-TEX STANDARD 100 certificate
2) 80% polyamide, 20% elastane
Country of production: Italy
OEKO-TEX STANDARD 100 certificate
3) 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.
A special absorbent layer seals the blood inside the functional pad, which is so thin that it 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