Illustrative situation
A brand is offered a "moisture-wicking" T-shirt fabric by two mills. Both say the fabric pulls sweat away, but one is cheaper and feels thinner. The brand wants to know how to tell which one really performs.
Main answer
Wicking moves liquid sweat along and through fabric by capillary action, which helps spread moisture so it can evaporate, but it does not stop sweating and it does not make fabric dry instantly. Ask for liquid transport and drying rate results from named methods, and test the fabric on wearers instead of relying on a claim.
How wicking works
Sweat on skin is drawn into the small spaces between fibres and yarns, then spreads across the fabric surface where it can evaporate. Fine synthetic fibres, shaped fibres and knit structures with a tight inner face and a more open outer face encourage this movement. Some fabrics use a finish to improve water spreading.
Wicking is not drying
Moving liquid and drying are different functions. A fabric can spread sweat well and still stay damp for a long time if it is thick or absorbent. Cotton absorbs and holds moisture, so it dries slowly, while polyester absorbs little and dries faster. Both can feel wet when saturated, and wicking has limits in humid air.
What to measure
AATCC TM195 measures how liquid moisture spreads, absorbs and moves through a fabric over a short time, with results such as wetting time, absorption rate and one-way transport. AATCC TM201 measures drying rate on a heated plate. Ask for both, on your actual fabric and after washing, since finishes can wear off.
Humidity and layering
In humid air, evaporation slows, so even the best wicking fabric feels damp. Layers matter too: a wicking shirt under a non-breathable jacket traps moisture. Tell customers what the fabric can and cannot do, and avoid promises like stays dry.
Judging a claim
Ask whether the wicking comes from the fibre or knit structure, or from a finish, and how many washes it survives. Compare fabrics at similar weight, as thinner fabric dries faster anyway. Wear-test with real sweat in the climate you sell to. See performance and compression guide and sportswear manufacturer.
Fact, recommendation, uncertainty
- Established fact
- AATCC TM195 measures liquid moisture management and AATCC TM201 measures drying rate, so they cover two separate functions.
- Recommendation
- Ask for both liquid transport and drying rate results after washing, and wear-test before approving a claim.
- Uncertainty
- Lab results do not capture every climate, activity or body, so wearer testing remains useful.
Sources and further reading
- AATCC TM195 — Liquid Moisture Management Properties of Textile Fabrics
- AATCC TM201 — Drying Rate of Fabrics: Heated Plate Method
Sources checked on 24 October 2026. Standards bodies sell the full texts; we cite what their public pages state. General information, not legal or technical certification advice.
More perspectives from the team
Three further views on the same question, each by function. They add conditions and limits to the main answer; they are editorial notes, not customer reviews.
Sino Finetex Editorial Team Sourcing
Ask whether the wicking is inherent or from a finish and how many washes it survives. Limit: finish durability is often tested with fewer washes than customers use. Ask for test reports on the finished fabric after five and twenty washes.
Sino Finetex Editorial Team Product selection
Choose lighter, finer knits for hot, humid use and avoid heavy fabric. Limit: a very light fabric can be less durable. Pair wicking fabric with a cut that lets air move across the torso and back.
Sino Finetex Editorial Team Quality & care
Compare drying time of washed samples under the same conditions. Limit: room temperature and airflow change the result, so keep them equal. Check that the wicking face is on the skin side in the finished garment.
Related products
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