Casual & Sexy Underwear

With 10+ years experience in underwear manufacturing, YSTAR is the sole global supplier authorized by international brands PSD and Knobby.

Up to 20 existing women’s underwear styles for you to choose from, or you can send in your favorite style and we offer an attentive design service.

A variety of fabrics for you to choose from: cotton, polyester, spandex, modal, bamboo, merino wool, etc.

We have internationally recognized certificates that guarantee that our products pass stringent international requirements.

Custom Underwear Manufacturer

Brief & Boxer brief & Trunk

Before After


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Before After


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Before After

Boxer briefs

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G-string & Jockstrap & Thongs


Multiple Fabric Options

(All over printing pattern)

(Screen printing)

Organic Cotton

View Our Organic Cotton Certificate

Cotton is the most popular fabric for underwear because it’s breathable and comfortable. Lycra and spandex are often added to cotton underwear to make them stretchier and more supportive.

Cotton underwear is definitely the most common in your market.

What printing technology can be used for your design on cotton underwear?

  • Screen printing for small area patterns and logos. Our advanced technology ensures that the print does not fall off and does not change color.
  • Reactive printing for all-over patterns. The fabric always stays soft after this process and does not fade when washed.

We are constantly updating  printing technology to meet the needs of your market!

Where does our cotton fabric come from?

Chinese cotton, American cotton, and Australian cotton are all available.

For importing cotton, we can show sales contracts with the US or Australian cotton exporter, Certificate of Origin, and Certificate of Quality, ensuring no obstacles to your local customs clearance.

What is the quality of our cotton fabric?

Organic cotton is our first choice. We evaluate our suppliers of cotton annually, ensuring that the cotton meets the following criteria:

  • Cotton fiber length: 29.5mm
  • Micronaire: 4.3  (A level)
  • Fiber uniformity: 81.9%
  • Specific strength: 29.8cN/tex

Recycle Polyester

View Our Global Recycle Standard Certificate

Polyester was mostly used for yoga and sportswear before, but in recent years, polyester boxer has become popular.

If your local market is saturated with cotton boxers, we highly recommend you try to sell polyester boxers. It’s a new opportunity!

Why choose polyester as the boxer’s fabric?

All over the world, boxers are sought after by young people and have become a major trend in fashion.

  • Popular with the consumers: The annual sales of polyester underwear in the United States exceed 10 million pieces.
  • Realization of colorful patterns: The use of digital printing technology ensures that your design pattern on the fabric is very clear with vivid colors.
  • Low MOQ: With the low cost of digital printing you can test the product and market by placing small orders from us.

Where does our polyester fabric come from?

YSTAR insists on using recyclable polyester fabrics to protect the environment, reduce pollution and promote the sustainability of low-carbon emission reduction.

The polyester fabric we use is made from the large number of waste plastic products people daily consume.

Making 1 pair of boxer = recycling 6 plastic bottles 

How to  custom polyester boxers for your brand?

  1. Choose the  boxer styles you like
  2. Send your design file or picture
  3. Confirm the mock-up
  4. Receive the sample from us
  5. Confirm bulk production details
  6. Pay deposit 
  7. Be shown the production process
  8. Pay the balance before shipping
  9. Received the bulk 

Congratulations! Your polyester boxers are ready to sell!

(YSTAR Team)

(YSTAR Team)

(YSTAR Team)

(YSTAR Team)


Except for organic cotton and recycled polyester, we have more fabrics to choose from.

Recycled Nylon

Recycled nylon is often used in the production of underwear, as it has a soft feel and is breathable.

It is also durable and resists pilling, making it a good choice for undergarments that are worn regularly. Additionally, recycled nylon uses less energy to produce than new nylon, making it environmentally friendly.



Bamboo fabric is a natural fiber made from the pulp of bamboo grass.

It’s soft, breathable, and moisture-wicking, making it a popular choice for underwear.



Modal is a natural fiber made from beech tree pulp. It is considered a luxury fiber because it is incredibly soft and smooth.

It is also breathable and moisture-wicking, making it a popular choice for underwear and other intimate apparel.

Premium Merino Wool

Premium Merino wool is high-quality wool that comes from Merino sheep.

It is also very breathable, which makes it a great choice for underwear. It is also naturally odor-resistant and helps regulate body temperature, making it ideal for hot and cold weather.

Multiple Color Options

(Including cotton, modal, rayon)

Specify Pantone colors (C card) when you reach a certain quantity of each fabric.

Multiple Package Options

Styles Reference

Eco-friendly packaging

FAQs About Casual & Sexy Underwear

Women’s underwear is more versatile than men’s, and we can bring your brand concept to life in any design.

Yes, if you have your own logo/designs, pls offer us AI, PSD or PDF formats. If you don’t have idea, you can send us some product pictures for reference. We accept custom design, size, color, logo, label, packaging, etc.

For polyester:  500pcs/design
For cotton, bamboo, modal and rayon:

500pcs/design for the colors in stock

3000pcs/design for specified colors

Sample production:

7 days with fabric stock

Mass production:

30 days with fabric stock

60 days witihout fabric stock

Our payment terms are T/T, Western Union, and paypal only for sample order.

We are a production-oriented company with 16 years experience. Our factory covers an area of 8,000 square meters, with 4 production lines, and more than 200 workshop employees.

The monthly output can reach up to 2 million pieces.  In recent years, our factory has introduced a series of advanced equipment including auto fabric cutting machine, laser cutting machine, digital print machine, waistband auto sewing machine.

  1. We have 16 years experience in processing and manufacturing  underwear .
  2. We cooperate with international big brand PSD and Knobby, we will also implement the strict standards for your order.
  3. We are located in Quanzhou. With convenient transportation, goods can reach the port on the same day as loading day.
  4. Our low MOQ is available for supporting growing-up company.

First, we will adopt the highest standards of raw materials within your budget. (we can show the certifications)

Second, we manufacture in strict accordance with AQL2.5 standards. 

Third, We have approximately 50 person QC team controls the entire production process. Random sampling of the entire process before production, during production, and completion
of production to ensure the product is in compliance with quality control requirements.