Choosing between modal, bamboo-derived viscose and lyocell is not simply a question of which fibre feels softest. For apparel brands and garment manufacturers, the right fabric also needs to match the target garment, price point, test requirements and production plan.
This guide explains the practical differences procurement teams should compare before requesting swatches or placing a bulk order.
Quick comparison
| Factor | Modal | Bamboo-derived viscose | Lyocell |
|---|---|---|---|
| Typical hand feel | Smooth, soft and fluid | Soft, comfortable and often silky | Smooth, clean and slightly structured |
| Common apparel uses | Underwear, loungewear, dresses and tops | T-shirts, sleepwear, underwear and casualwear | Dresses, shirts, premium tops and trousers |
| Moisture management | Good | Good | Good |
| Drape | Excellent | Excellent | Good to excellent, depending on construction |
| Key sourcing check | Pilling and dimensional stability | Fibre documentation and shrinkage | Fibrillation, finishing and care performance |
The final performance depends on more than fibre name. Yarn count, knit construction, GSM, dyeing, finishing and spandex content can change the result significantly.
What is modal fabric?
Modal is a regenerated cellulosic fibre commonly used where softness, drape and next-to-skin comfort matter. In knitted fabrics it is often blended with cotton or spandex to improve recovery, stability or price performance.
For B2B buyers, the most important checks are pilling resistance, colourfastness, shrinkage after washing and spirality in jersey constructions. A very soft laboratory swatch is not enough; the fabric should also be tested after the intended wash cycle.
Typical sourcing specifications include fibre composition, finished GSM, usable width, stretch and recovery, colour standard, shrinkage tolerance and pilling grade.
What is bamboo fabric?
Many fabrics sold as bamboo are bamboo-derived viscose rather than mechanically processed bamboo fibre. Buyers should ask suppliers to state the fibre description accurately and provide supporting documentation where a claim will appear on a care label, hangtag or product page.
Bamboo-derived viscose knits are popular for T-shirts, sleepwear and underwear because they can offer a soft hand and fluid drape. The main production risks are excessive shrinkage, surface pilling, shade variation and weak recovery when the construction or finishing is not properly controlled.
Avoid relying on broad antibacterial, biodegradable or environmental claims without test reports and market-specific legal review.
What is lyocell fabric?
Lyocell is another regenerated cellulosic fibre. It is used in both knitted and woven fabrics and can provide a smooth surface, good drape and a more refined appearance. Depending on yarn, construction and finishing, lyocell fabrics can feel fluid or relatively structured.
Procurement teams should evaluate wet performance, shrinkage, colourfastness, seam behaviour and the risk of fibrillation or surface change. The supplier should confirm whether the finishing route is suitable for the intended garment wash and care instructions.
How to choose the right option
Start with the garment requirement rather than the fibre trend.
For close-to-body basics and loungewear, modal-spandex jersey may provide the softness and stretch recovery required. For soft casual T-shirts or sleepwear, bamboo-derived viscose blends can be a practical option when fibre claims and wash performance are verified. For premium dresses, tops or styles that need a cleaner surface, lyocell may be worth testing.
The best comparison uses swatches with similar GSM, construction and spandex content. Comparing a lightweight single jersey with a heavy double knit will not reveal the true difference between fibres.
Specifications to send with an enquiry
To receive a useful quotation, include:
- Target composition or acceptable blend range
- Fabric construction, such as single jersey, rib or interlock
- Finished GSM and tolerance
- Usable width
- Required stretch direction and recovery
- Target colour or Pantone reference
- Expected order quantity per colour
- Required testing standard
- Garment use and destination market
- Sample deadline and bulk delivery target
Clear specifications reduce sampling rounds and help the mill recommend an existing quality or develop a more suitable construction.
Sample and bulk testing checklist
Before bulk approval, test the fabric in the same conditions expected for the finished garment. A practical checklist includes dimensional stability, spirality, pilling, colourfastness to washing and rubbing, stretch recovery, fabric weight and usable width.
For colour orders, approve a lab dip under the required light source. For large or repeat orders, agree on tolerances in writing and retain an approved reference swatch.
Request swatches from Lango Textiles
Lango Textiles supplies knitted fashion fabrics from Shaoxing, China for apparel brands, garment manufacturers and sourcing teams. We can help compare modal, bamboo-derived viscose and lyocell options by composition, GSM, width, stretch, MOQ and end use.
Send your specification to James@langotextiles.com or contact us on WhatsApp at +86 180 0585 7379 to request swatches and a bulk quotation.