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Knitwear Fabric Guide: Cotton, Wool, Cashmere & Synthetic — How to Choose

Sep. 14, 2026

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Published September 14, 2026 · Reading time: 7 minutes

Direct answer: Choose knitwear fabric by season, price position, and care expectation. Cotton is the all-season, breathable, budget-friendly workhorse — ideal for polos, t-shirts, and summer knitwear. Wool is the warm, structured choice for sweaters and cardigans. Cashmere is the premium, ultra-soft option for luxury lines. Synthetic and blends add stretch, durability, and easy care for active wear. A full-service manufacturer like FNJIA lets you choose across these and tailor the blend to your exact budget and market — the fabric decision then flows naturally into the customization process.

1. Fabrics at a glance

Fabric Feel & warmth Season Price Care
Cotton Breathable, soft All-season Low–mid Machine washable
Wool Warm, structured Autumn/winter Mid Gentle / hand wash
Cashmere Ultra-soft, luxurious Autumn/winter High Delicate care
Synthetic / blends Stretch, durable All-season / active Low–mid Easy care

2. Cotton — the all-season workhorse

3. Wool — warmth and structure

4. Cashmere — the premium option

5. Synthetic and blends — stretch and easy care

6. How to decide

  1. Fix your price position — budget (cotton/synthetic), mid (wool/blends), or premium (cashmere).

  2. Match the season — cotton and synthetics for spring/summer, wool and cashmere for autumn/winter.

  3. Consider the end use — active wear needs stretch and wicking; formal knitwear needs drape and structure.

  4. Sample before bulk — always approve a fabric sample so the feel and color match your expectation.

7. Care and longevity — protect your brand's reputation

The care label you print is a promise to the customer. Match it to the fabric:

8. Who we are — and the capacity behind the fabric

FNJIA, established in 2005, is a professional knitwear manufacturer with 20+ years of OEM experience, 4,368+ designs, and 100,000+ pieces of monthly capacity. We source fabrics and trims from trusted suppliers and support the full customization process, so the fabric, fit, and finish are matched to your market. Browse the range across men's, women's, kids, and active wear.

9. Frequently asked questions

Which fabric is best for a summer collection?

Cotton and cotton-blends — breathable, soft, and machine-washable, ideal for polos and summer knitwear.

What fabric should I use for a premium line?

Cashmere or fine merino wool, which deliver the softest hand feel and strongest perceived value for a luxury position.

Can I mix fabrics or order a custom blend?

Yes. A full-service manufacturer like FNJIA can tailor the blend — for example cotton-synthetic for easy care, or a wool-blend for warmth plus washability.

Do you provide fabric samples?

Yes. Before bulk, you approve a sample that lets you evaluate fabric, fit, color, and quality — roughly $50–$80 per piece.

How do I keep knitwear from stretching?

Reshape and dry flat, and store folded rather than hung. The care label you print should match the fabric's needs.

How do I start a fabric selection?

Send your price position, season, and product type to fnjia@fnjiaknitwear.com, or review the customization process.

Choosing fabrics for your collection?

Contact FNJIA at fnjia@fnjiaknitwear.com, or explore our products and custom service.

 

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