Quick Summary
SEDEX Black High Waisted Period Swimwear Bikini Bottoms in XL are period swim shorts for swimming, with a 4 layer leakproof design and a high waisted fit. They are described as menstrual bikini briefs and swim shorts for beach and pool use.
For a buyer comparing swimwear for light to moderate flow days, the key practical point is the layered leakproof construction. The black finish also makes them easy to pair with different swim tops.
Who It Is Best For
These bottoms suit buyers looking for period swimwear for swimming and other water based activities such as surfing, boating, water parks, beaches and holiday pools. The XL size and the size chart note mean fit should be checked carefully before ordering.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | SEDEX. |
| Product type | Period swimwear bikini bottoms / period swim shorts for swimming. |
| Colour | Black. |
| Fit | High waisted. |
| Size | XL, so the selected size should be checked before ordering. |
| Leakproof design | 4 layer leakproof construction with absorbent material and water-repellent fabric. |
| Fabric content | 86% nylon and 14% elastane. |
| Care guidance | Wash in cold water. Do not use bleach and do not tumble dry. |
Why Buyers Choose It
- The 4 layer leakproof design is intended for absorbency and leak protection during wear.
- The high waisted style gives a bikini bottom option rather than a separate full swimsuit.
- The black colour makes it straightforward to pair with a range of swim tops.
- The stated fabric mix is breathable, quick drying, elastic and comfortable.
What To Know Before You Buy
Check the XL size and the size chart pictures before ordering, especially if you have larger hips and are considering sizing up. The period swimwear is described for light to moderate flow days, so it is worth matching it to your intended use. Care instructions also matter here, as cold washing, no bleach and no tumble drying are specified.
Common Buyer Questions
What is this used for?
It is period swimwear for swimming and other water based activities, with a 4 layer leakproof design.
What size is this variation?
This listing is for XL, so fit should be checked against the size chart before ordering.
How should it be cared for?
Wash in cold water, and do not use bleach or tumble dry it.
What does the fabric contain?
It is made from 86% nylon and 14% elastane.
Final Buying View
If you want black high waisted period swimwear in XL, this SEDEX option gives you a 4 layer leakproof bikini bottom style with clear care guidance. Check the size chart and the XL fit before choosing it for your swimwear setup.






