Fleece Fabric Explained – LSF vs HSF and Why It’s the Ultimate Winter Material
Introduction
Fleece is one of the most popular fabrics in the world of winter fashion — soft, warm, lightweight, and highly versatile. Whether used in hoodies, jackets, sweatshirts, or blankets, fleece offers superior insulation and comfort. But not all fleece fabrics are the same. In the textile industry, two major types are widely used: Fleece LSF (Low Shrink Fleece) and Fleece HSF (High Shrink Fleece).
Let’s explore how fleece is made, how these two types differ, and which one is best for winter wear.
What is Fleece Fabric?
Fleece is a knitted fabric made from synthetic fibers such as polyester, sometimes blended with cotton or viscose for added softness. Despite its wool-like warmth, fleece is not made from animal fibers — making it lightweight, washable, and cruelty-free.
It was first developed as an alternative to wool, offering similar insulation but much easier maintenance.
How Fleece is Made
- Knitting: The base fabric is knitted, typically using circular knitting machines.
- Brushing: The inner surface is brushed with wire rollers to raise small loops, creating the soft “fluffy” texture.
- Shearing: Excess fibers are trimmed to ensure an even, smooth nap.
- Finishing: The fabric is dyed, treated for anti-pilling, and sometimes blended with spandex or cotton for flexibility and breathability.
This process gives fleece its signature warmth, softness, and comfort.
Difference Between Fleece LSF and Fleece HSF
| Feature | Fleece LSF (Low Shrink Fleece) | Fleece HSF (High Shrink Fleece) |
|---|---|---|
| Shrinkage | Minimal shrinkage after washing | Higher shrinkage if not pre-treated |
| Weight & Density | Slightly heavier, denser texture | Lighter, softer hand feel |
| Warmth | Excellent heat retention | Good, but less insulation than LSF |
| Durability | Highly durable and stable shape | May loosen or shrink slightly |
| Usage | Hoodies, sweatshirts, heavy winterwear | Sportswear, mid-season wear |
| Cost | Slightly higher due to better stability | More economical |
Which Fleece is Best for Winter?
For cold weather, Fleece LSF is the superior choice.
- It retains heat effectively.
- Maintains its shape even after repeated washes.
- Provides heavier insulation and wind resistance.
Fleece HSF, while softer and lighter, is more suitable for mild winters or activewear, where breathability and flexibility are important.
Types of Fleece Used in Fashion
- Polar Fleece: Thick, warm, and soft — ideal for jackets and blankets.
- Micro Fleece: Lightweight and breathable — best for layering.
- Sherpa Fleece: Deep-pile texture resembling sheep wool — ultimate coziness.
- French Terry Fleece: Loop texture inside, smooth outside — great for sweatshirts.
- Bonded Fleece: Double-layered for added windproof and water resistance.
Why Fleece Remains a Winter Essential
- Warmth Without Weight: Insulates body heat without feeling heavy.
- Quick Drying: Wicks away moisture efficiently.
- Durable & Easy to Wash: Maintains quality even after frequent use.
- Affordable Alternative to Wool: Offers luxury feel at a lower cost.
- Vegan & Sustainable Options: Increasingly made from recycled polyester (rPET).
Fleece at Sapphire Stitching
At Sapphire Stitching, we produce premium quality fleece fabrics including both LSF and HSF, ensuring stability, warmth, and softness that meet international standards.
Our fleece is ideal for export-quality winterwear, including hoodies, sweatshirts, and jackets. With expertise in knitting, dyeing, and stitching, we deliver fabrics that combine comfort, durability, and fashion innovation.
Conclusion
Whether you choose Fleece LSF for superior insulation or Fleece HSF for lightweight comfort, both offer the warmth and softness that define winter fashion.
With continuous innovation in textile technology, fleece remains one of the most dependable fabrics for comfort and performance — and Sapphire Stitching is proud to be a part of that evolution.
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