Stylish Period Bathing Suit Leakproof One-Piece Swimwear
Stylish Period Bathing Suit Leakproof One-Piece Swimwear
Leak Protection for Beach Days
Threo Swimwear helps you enjoy water without period worries. Absorbent layers catch flow before stains reach fabric. Flexible shaping feels smooth beneath shorts or sundresses afterwards.
Secure Coverage
Extended lining supports front and rear during active dips. You leave waves smiling, not checking every towel.

Easy Comfort
Soft stretch follows movement without pinching or rubbing skin. Flat seams sit neatly beneath dresses after pool visits.

Reusable Choice
Washable design reduces disposable pads for lighter packing. Quick-drying material dries fast between seaside adventures.

Size guide

TO MEASURE YOURSELF:
Stand straight with your arms hanging naturally by your sides.
Wrap the measuring tape around the thinnest part of your waist, the fullest part of your hips.
| SIZE | WAIST | HIP | ||
|---|---|---|---|---|
| cm | inch | cm | inch | |
| XS | 57-63 | 22.4–24.8 | 80-86 | 31.5–33.9 |
| S | 64-70 | 25.2–27.6 | 87-93 | 34.3–36.6 |
| M | 71-77 | 28–30.3 | 94-100 | 37–39.4 |
| L | 78-84 | 30.7–33.1 | 101-107 | 39.8–42.1 |
| XL | 85-91 | 33.5–35.8 | 108-114 | 42.5–44.9 |
| XXL | 92-98 | 36.2–38.6 | 115-121 | 45.3–47.6 |
| XXXL | 99-104 | 39–40.9 | 122-127 | 48–50 |
| 4XL | 105-111 | 41.3–43.7 | 128-134 | 50.4–52.8 |
| Size | US | UK | EU | Foot length | |
|---|---|---|---|---|---|
| cm | inch | ||||
| 35 | 5.5 | 4 | 35 | 23 | 9.06 |
| 36 | 6 | 4.5 | 36.5 | 23.5 | 9.25 |
| 37 | 6.5 | 5 | 37 | 24 | 9.45 |
| 38 | 7 | 5.5 | 38 | 24.5 | 9.84 |
| 39 | 7.5 | 6.5 | 38.5 | 25 | 10.04 |
| 40 | 8 | 7 | 39 | 25.5 | 10.04 |
| 41 | 8.5 | 7.5 | 41 | 26 | 10.24 |
| 42 | 9 | 8 | 42 | 26.5 | 10.43 |
| 43 | 9.5 | 9.5 | 43 | 27 | 10.86 |
| 44 | 10 | 10 | 44 | 28 | 11.22 |














T***B (verified buyer)
New Zealand
Loved wearing it under my beach dress
E***H (verified buyer)
New Zealand
My sister thanked me after her trip
K***W (verified buyer)
New Zealand
Felt secure during my hotel pool swim
N***T (verified buyer)
New Zealand
I packed this one-piece for a weekend away, washed it at night, and it was ready for the next morning
P***S (verified buyer)
New Zealand
The swimsuit stayed smooth while I played in the waves with my nieces, then felt fine under shorts on the walk back
M***R (verified buyer)
New Zealand
I wore this swimsuit on a lake trip during my period, and I felt calm swimming and sitting on towels afterward
J***P (verified buyer)
New Zealand
Bought the suit for my beach holiday, and the soft lining kept me comfortable under a sundress after lunch
A***M (verified buyer)
New Zealand
My daughter is in college, so I sent her this swimwear. She said it helped her enjoy pool day without stress