4 Layers Period Underwear for Swimming
We’re patented for a reason. Independently lab tested and scientifically proven to keep you dry, fresh and odour controlled.
01 Crotch Layer. No Side Leaks
In the crotch area, we use a special design to stop side leaks. You can move, walk, or sit without worry.
02 Absorbent Layer. Strong Absorptuon
The absorbent layer uses polyester, which can hold at least 45ml of liquid. That’s more than a regular pad.
03 Leakproof Layer. PFAS Free
We use TPU, a soft and safe waterproof material with no harmful chemicals. It keeps liquid inside but still lets air flow.
04 Outer Fabric. 50+ UPF
You can choose organic cotton or bamboo fiber for the main fabric. Both are soft, breathable, and good for the skin.
Best Bikini Period Underwear for Swimming
Period underwear for swimming lets you stay active during your period, whether you’re swimming, surfing, or enjoying a beach party. Suitable for beaches, pools, hot springs, water parks, and even swim classes or camps, this product is designed for heavy flow. It features multi-layer leak protection to help manage small leaks while in or near water. The outer fabric looks like regular bikini swimwear, while the inner layers absorb and lock in moisture to prevent spotting. Breathable, reusable, and free from PFAS and other harmful chemicals, this swim-friendly period underwear is a reliable option for teens and adults who want comfort, coverage, and peace of mind during active days.
High Absorbent
Anti Leakage
Odor Control
Certified Organic
Up to 12 Hours Leakproof & Odor Absorbing
- Trusted by over 200,000 happy users.
- Loved & reordered by big brands.
- Bacteria Resistance.
- Odor Absorbing.
- 12 Hours Sustainability.
- Up to 40ml absorbency.
Swimwear That Holds 40ml. Seriously.
This menstrual swimwear is equipped with high-absorption layers that quickly capture moisture, helping prevent leaks during light to moderate flow. The core area can hold up to 40ml of liquid — roughly the same as four tampons — offering dependable protection for time spent in or near water. Side leak guards are included for added security, especially during movement. Though not designed for extended wear or heavy flow, it’s a practical choice for brief swim sessions, water activities, or as extra backup alongside a tampon or cup, letting you stay active and at ease.
No Chemical PFAS Period Swimsuit
PFAS are not just one single chemical — they are a large group of around 12,000 substances that can stay in the body and environment for a long time. These chemicals break down very slowly, which is why people call them “forever chemicals.” Some period underwear and hygiene products may include PFAS, often used to improve absorption or prevent stains. However, these chemicals can enter products through the raw fabrics or materials suppliers use — even without the brand knowing. We choose only safe, PFAS-free materials. Our products are carefully designed to protect against leaks, stay breathable, and feel soft on the skin. Every item goes through strict testing to ensure safety and comfort. This is period protection that’s made with care — for your body, and for the future.
Four-way Stretch & Elegant Outfit
This period swimwear is made for active users, including teens and plus-size wearers, offering discreet protection for moderate to heavy flow with a multi-layer core that absorbs menstrual fluid without bulk. The outer fabric resists swelling in water, keeping the fit smooth and natural. A breathable, antibacterial lining helps control odor and maintain freshness, while the PFAS-free, chlorine-resistant material dries quickly and stays opaque when wet. Its four-way stretch and wide, secure fit ensure comfort and stability during movement, and it can be used with tampons or menstrual cups for extra protection.
- Outer Fabric: 82% Polyamide 18% Elastane
- Leakproof Fabric: 100% Polyester (recycled) & 100% Polyurethane
- Absorbent Fabric: 100% Polyester (Biodegradable)
- Lining: 88% Polyamide 12% Elastane
- Four-way Stretch
- Quick-dry Material
- No Slipping
UPF 50+ (Customizable)
This menstrual swimwear offers UPF 50+ sun protection, effectively blocking over 98% of harmful UV rays. It's ideal for beach outings, outdoor swimming, and any activity with prolonged sun exposure. The fabric provides built-in UV defense, so there's no need for extra sunscreen underneath. Custom sizing, colors, or branding options are also available to meet different market needs.
Support OEM/ODM & Instock Wholesale
- Free Sampling & Prototyping
- Quality Guarantee & Hassle-Free Returns
- Responsive After-Sales Service
- Flexible Customization & OEM Support
Flexible Bundling: 3-Pack / 5-Pack / OEM Available
We offer flexible packaging solutions tailored to your needs — whether you’re selling on Amazon, running a boutique store, or doing wholesale. Options include 3-pack, 5-pack, or customized bundles upon request.
Fast Intro
Period Swimwear GRS03
Premium period swimwear for brands: low moq, customizable, PFAS-free, sustainable fabrics like organic cotton, bamboo & modal. OEM/ODM with strict quality control.
Product SKU: GRS03
Product Brand: Period Factory
Product Currency: USD
Product Price: 2.9
Product In-Stock: InStock
4.9
