
Underwear Fabric KnowledgeIn-Depth
2026年3月2日
The Truth About Modal Underwear: 8 Misunderstandings Debunked | Expert Manufacturer
Are you selling Modal underwear? Don't fall for these 8 common fabric myths! Discover the facts about Modal's shrinkage, stretch, and breathability from a leading professional underwear factory.
The Truth About Modal Underwear: 8 Common Fabric Misunderstandings Debunked by YDL Expert Manufacturer
If you are an underwear wholesaler, an e-commerce seller on Amazon or Shopify, or a fashion influencer looking to build your own brand, you’ve likely heard of Modal fabric. Known for its buttery-soft texture, Modal has become a top choice for premium men's and women's underwear.
However, as a professional underwear manufacturer with years of experience, we see a lot of misinformation online. Some fabric "guides" are great, but others are full of half-truths and absolute nonsense!
To help you source better products and market them accurately to your customers, let’s play a game of "Spot the Myth" and debunk the 8 most common misunderstandings about Modal fabric.

Moisture & Breathability Myths
Misunderstanding 1: "Modal is a walking AC. It absorbs moisture 1.5x better than cotton and dries instantly."
The Factory Truth: Half true, half false.
The standard moisture regain rate of Modal is 13.5, while cotton is 8. So yes, claiming it absorbs moisture 1.5 times better than cotton is right. However, while Modal has strong moisture absorption, it has slow moisture release. It does not dry instantly. Modal is for everyday comfort, not extreme sports.
Washing, Shrinkage & Durability Myths
Misunderstanding 2: "A lazy person's dream: Machine washable and never shrinks."
The Factory Truth: False.
Under the exact same knit structure, Modal fabric actually has a higher shrinkage rate than cotton(though less than viscose). As a reliable manufacturer, we counter this by using advanced pre-shrinking treatments during the fabric setting process to ensure your customers get a stable, high-quality product.
Misunderstanding 3: "The ceiling of strength! You can stretch it forever, and it won't deform."
The Factory Truth: Completely false.
The modal fiber itself has zero elasticity. The stretchiness you feel in high-quality Modal underwear comes entirely from the Spandex (Elastane)blended into the fabric (usually 5% to 10%).
Misunderstanding 4: "Modal deforms and shrinks easily because the fiber is too elastic."
The Factory Truth: It is not true. Yet we see it everywhere!
Fabric's easy deformation and significant shrinkage are often caused by unreasonable specifications and setting processes. Unreasonable manufacturing processes for any type of fabric can lead to issues such as deformation and shrinkage. This is why choosing a professional underwear supplier is crucial!.
Misunderstanding 5: "Modal wrinkles easily because the texture is so soft."
The Factory Truth: False.
In textile science, Modal fiber has a low initial modulus, which actually makes the finished fabric wrinkle-resistant. For comparison, linen has a high initial modulus, which is why it wrinkles so easily. Modal drapes beautifully and stays smooth.
Comfort & Safety Myths
Misunderstanding 6: "Skin allergy risk: The chemicals in Modal might cause contact dermatitis."
The Factory Truth: Absolute nonsense.
Modal is an eco-friendly, regenerated cellulose fiber made from beech tree pulp. Its softness and skin-friendly properties are unmatched. If someone experiences an allergy, they likely bought a low-quality product from a cheap factory that used harsh, unregulated dyeing chemicals—not because of the Modal fiber itself.
Misunderstanding 7: "It has the softness of cotton and imitates the warmth of wool."
The Factory Truth: Baseless marketing fluff.
Modal and Lyocell fibers naturally have a cool-to-the-touch feel. They do not imitate the warmth of wool whatsoever. If the Lenzing company, which invented Modal fabric, saw this claim, they would be shaking their heads! Modal is perfect for cooling, breathable summer underwear collections.
Misunderstanding 8: "Modal has limited heat resistance."
The Factory Truth: False.
Fibers with poor heat resistance are protein-based, like wool and silk. Modal, just like cotton, is a cellulose fiber. Its heat resistance is excellent and virtually identical to cotton. It can easily withstand standard heat-setting and ironing processes during manufacturing.
Partner with a Manufacturer Who Knows Their Fabric
Understanding the true properties of Modal fabric is necessary for an underwear wholesaler or brand to build a successful underwear business. In the factory view, partnering with a factory that knows how to handle it is a big help for your underwear business.
At YDL underwear, we specialize in manufacturing high-performance men's and women's underwear for global wholesalers, e-commerce brands, and influencers.
Why Choose Us as Your Underwear Supplier?
- Expert Fabric Sourcing: We use premium Modal, Cotton, and Bamboo blends with the perfect ratio of Spandex for ultimate comfort.
- Strict Quality Control: Our advanced pre-shrinking and heat-setting processes ensure your products won't deform or shrink easily.
- Flexible OEM/ODM Services: Whether you need custom branding, specific sizing, or ready-to-ship wholesale items, we’ve got you covered.
Stop letting poor manufacturing ruin great fabric. Email https://www.ydl-underwearfactory.com/contact to get a free quote and fabric samples for your next best-selling underwear line!

