How to Develop Custom Period Underwear with Your Target Absorbency？

Introduction 

As demand for reusable period underwear continues to grow, more brands are looking for products with specific absorbency levels to meet different customer needs. From everyday period panties to heavy-flow and overnight underwear, brands want products that offer reliable protection, comfort and long-term performance.

For brands developing custom period underwear, absorbency is one of the most important product specifications. Whether your target is 30ml, 45ml, 60ml or even 100ml, the development process requires careful consideration of materials, layer construction, gusset design and testing.

However, achieving a specific absorbency level is not simply a matter of adding more fabric layers. The materials must absorb and retain liquid effectively while keeping the finished underwear comfortable and flexible.

As an experienced Period Underwear Manufacturer, CHUANGRONG Apparel supports OEM and ODM development for brands looking to create customized menstrual underwear and private label period panties.

How to Develop Custom Period Underwear with Your Target Absorbency?

Step 1: Define Your Target Absorbency

Before starting development, brands should define the required absorbency and intended use of the product.

For example:

· 45ml: A higher-capacity development target.

· 60ml: A custom target for higher-absorbency period panties.

· 60ml: 100ml: A more demanding target that may require special materials and construction adjustments.

These figures is not universal industry classifications. Actual results depend on the testing method and conditions.

Step 2: Select Suitable Fabrics and Absorbent Layers

Material selection plays a major role in the performance of custom period underwear.

A Typical Leakproof Underwear construction may include several  layers:

· Skin-contact layer: Cotton, cotton-spandex, bamboo viscose ,polyester twill or other suitable fabrics for softness and comfort.

· Absorbent layer: Designed to absorb and retain liquid within the gusset area.

· Leak-resistant layer: PU or other suitable functional materials to help prevent fluid from passing through to outer clothing.

· Outer fabric: Fabric with waterproff , forms the main body of the underwear and contributes to fit, stretch and overall comfort.

The exact combination depends on the target absorbency, fabric properties and desired garment thickness.

Adding more layers does not automatically mean higher absorbency. Material performance, liquid distribution and layer arrangement all influence the finished product.

For brands developing custom leakproof underwear or private label period panties, the goal is to balance absorbency, leakage protection, softness and flexibility.

Step 3: Optimize Gusset Width, Length and Coverage

The gusset is another critical factor in high-absorbency period underwear development.

Even if the absorbent materials have sufficient capacity, insufficient coverage may cause leakage around the sides or ends of the protection area.

During product development, manufacturers should evaluate:

· Gusset width: Provides suitable side coverage.

· Gusset length: Determines the front and back protection area.

· Absorbent panel positioning: Ensures the functional layers are correctly aligned.

· Waterproof barrier coverage: Helps reduce the risk of leakage.

· Size grading: Ensures suitable coverage across different underwear sizes.

For example, overnight period underwear may require extended front-to-back coverage, while regular bikini briefs may prioritize a slimmer and more discreet construction.

The final gusset dimensions should be developed according to the underwear style, target absorbency and fit requirements.

Step 4: Balance Absorbency with Wearing Comfort

One challenge in developing high-absorbency period panties is maintaining comfort while increasing liquid capacity.

A thicker crotch construction may provide more absorbent material, but it can also affect flexibility, fit and the overall wearing experience.

During sample development, the manufacturer should evaluate :

· Absorbency

· Liquid retention

· Crotch thickness

· Fabric softness and stretch

· Leakage resistance

· Overall comfort.

For brands targeting the premium period underwear market, product performance should not come at the expense of comfort.

Step 5: Test Absorbency and Wash Durability

Absorbency testing is essential before approving bulk production.

Test results can vary depending on the liquid used, application speed, testing method and sample condition. A new sample and one that has undergone multiple wash cycles may produce different results.

At CHUANGRONG, our previous internal development work has evaluated some period underwear samples reaching approximately 45ml or 60ml absorbency under our test conditions as below.

Testing, MOQ and Custom Manufacturing Considerations

Developing custom period underwear requires more than sample approval. Brands should also consider testing requirements, material availability, minimum order quantities and production feasibility before moving into bulk manufacturing.

1.Confirm Testing Requirements

Before approving a sample, brands and manufacturers should agree on the absorbency testing method and acceptance criteria.

Important points include:

· Whether testing is conducted on a new or washed sample

· The type of test liquid and application method

· Required absorbency capacity in ml

· Leakage and liquid-retention requirements

· Whether additional wash-cycle testing is needed

For brands selling in different markets, third-party laboratory testing may also be considered to support product performance claims.

A clear testing standard helps both parties confirm whether the finished product meets the agreed specifications.

 2.Understand MOQ and Material Availability

The MOQ for custom period underwear manufacturing depends on the selected fabrics, colors, construction and order quantity.

· Available stock fabrics may offer more flexible MOQ options.

·Custom-dyed fabrics usually require higher material quantities.

·Special absorbent materials may need additional sourcing or development.

·Changes to gusset construction may affect material consumption and production costs.

For new brands, using suitable available materials can be a practical way to start product development while controlling initial investment.

3.Evaluate Production Feasibility and Target Cost

A higher absorbency target may require additional materials, more complex construction or a larger protection area. These factors can affect the final EXW or FOB price.

When discussing a project with a period underwear OEM manufacturer, brands should ideally provide:

·  Target absorbency

·  Preferred materials

·  Size range

·  Estimated order quantity 

·  Target price.

This allows the manufacturer to recommend a suitable solution that balances product performance, comfort and production cost.

Good product development is not only about achieving the target absorbency. It is also about creating a product that can be manufactured consistently and remain commercially practical.

Frequently Asked Questions About Custom Period Underwear

Q1: Can a manufacturer develop period underwear with 60ml absorbency?

Yes. 60ml can be used as a custom development target. The final result depends on the absorbent materials, layer construction, gusset coverage and testing method.

Q2: Is it possible to develop 100ml period underwear?

Yes,100ml is a more demanding development target. We can use special absorbent materials, expand coverage or make some construction adjustments to make it.

Q3: Can period underwear maintain its absorbency after washing?

This depends on the materials and construction. Wash-cycle testing is recommended to evaluate whether the product maintains its performance after repeated washing.

Q4: What is the MOQ for custom period underwear?

MOQ depends on fabric availability, colors, construction and order quantity. Using stock materials may offer more flexible options than custom-developed fabrics.

Looking for a reliable period underwear manufacturer for 60ml, 100ml or other custom hight absorbency requirements ?

At CHUANGRONG, we support brands with fabric sourcing, sample development and construction adjustments before bulk production.

Good product development is not only about achieving the target absorbency. It is also about creating a product that can be manufactured consistently and remain commercially practical.

Share your product reference, target absorbency and estimated order quantity with us. Let's discuss your custom period underwear development project.

Email: Lexie@Sharicca.com

Email: Info@Sharicca.com