Cotton fabric
Cotton is the breathable default: a natural plant fibre that is soft, absorbent, and the fabric dermatologists most often recommend for sensitive and eczema-prone skin. Its trade-offs are water use in farming and finishing chemicals that sometimes get blamed on the fibre itself.
Is cotton safe for skin?
Cotton itself is hypoallergenic. True cotton-fibre allergy is very rare, which is why hospitals use cotton for dressings and why it is the standard pick for eczema-prone skin. Most reactions people blame on a cotton garment actually come from the dyes or from wrinkle-free resin finishes, not the fibre. Unfinished or certified organic cotton removes most of that risk.
Comfort and performance
Cotton is highly breathable and absorbs up to 27 times its weight in moisture, which keeps you cool in normal wear. The same absorbency works against it during exercise: it holds sweat against the skin instead of wicking it away, so it is not the best base layer for hard activity.
Durability
Cotton is durable for everyday wear but loses about 20 percent of its strength when wet and pills sooner than polyester. Higher thread counts and tighter weaves last longer.
Environmental impact
Cotton is natural and biodegradable, but conventional cotton is water-intensive and accounts for an outsized share of global insecticide use, around 10 to 16 percent depending on the year. Organic cotton uses about 91 percent less irrigation water and earns a far better fibre rating.
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Is cotton toxic?
Cotton fibre is not toxic and is considered hypoallergenic. Any health concern with a cotton garment usually comes from chemical finishes such as wrinkle-free resins or from dyes, not from the cotton itself. Look for OEKO-TEX or GOTS certification to avoid those.
Is cotton breathable?
Yes. Cotton is one of the most breathable common fabrics, which is why it is comfortable in warm weather and against the skin.
Does cotton shed microplastics?
No. Cotton is a natural cellulose fibre. The lint it sheds is biodegradable, unlike the plastic microfibres shed by polyester and acrylic.
- Sources
- Chapagain & Hoekstra (2005), water footprint of cotton, UNESCO-IHE / Ecological Economics 2006.
- ICAC (2019) global insecticide share; Textile Exchange organic cotton LCA (2014).
- Dermatology consensus on cotton and sensitive skin (DermNet, Rejuvaskin review).