The short answer
Nylon is neither simply good nor bad. It is a strong, lightweight, stretchy synthetic fiber that suits some jobs very well, such as rain jackets, swimwear, hosiery, backpacks and activewear. It is a weaker choice where breathability and a natural feel matter most, such as everyday underwear or hot-weather bedding. It also has environmental downsides that are worth knowing about.
What nylon is
Nylon is a synthetic fiber made from petrochemical-based raw materials. It was one of the first fully synthetic fibers to be sold widely, and it is now used in clothing, carpets, ropes, bags and many technical products. Chemically, nylon belongs to a family called polyamides. If you see “polyamide” on a clothing label, it usually means nylon, as explained in our comparison of polyamide vs nylon.
Where nylon performs well
- Durability. Nylon resists abrasion and tearing well, which is why it is common in outerwear, luggage and hard-wearing socks.
- Stretch and recovery. It has some natural elasticity and tends to spring back into shape; see is nylon fabric stretchy for detail.
- Quick drying. It absorbs much less water than cotton, so it dries quickly and suits swimwear and rain gear.
- Light weight and smooth feel. Nylon can be made into very fine, smooth fabrics, from sheer tights to lightweight shell jackets.
Where nylon falls short
- Breathability. Nylon fabrics, especially tightly woven or coated ones, can feel warm and clammy during long wear or in hot weather. Knit constructions and blends can improve this.
- Heat sensitivity. Nylon can warp or melt under a very hot iron or dryer. Follow the care label and see ironing by fabric type.
- Static. It can cling and build up static, particularly in dry conditions.
- Pilling and odor. Some nylon fabrics pill, and some people find synthetic fabrics hold odor more than natural fibers.
Is nylon safe to wear?
For most people, nylon clothing is a normal, widely worn material. Some online articles describe synthetic fabrics as “toxic,” but those claims are often broad and poorly sourced. What is more reasonable to say is this:
- Any fabric can bother sensitive skin, and the cause is often the dye, finish or tight fit rather than the fiber alone.
- Trapped heat and moisture in a non-breathable garment can contribute to irritation or chafing for some people.
- If you have a skin condition or a suspected allergy, a dermatologist is the best person to ask. Washing new clothes before first wear is a sensible habit for any fabric.
If breathability is your main concern, you may prefer cotton for items worn close to the skin. Our nylon vs cotton comparison goes through the trade-offs.
Is nylon 100% plastic?
Nylon is a synthetic polymer, and polymers are what plastics are made of, so in the broad chemical sense it is a plastic-type material. That does not mean it behaves like a plastic bottle in everyday use. It is spun into fine fibers and woven or knitted into textiles. The practical takeaway is that nylon does not break down quickly in the environment.
Environmental considerations
- Microplastics. Washing synthetic fabrics, nylon included, can release tiny fibers into wastewater. A washing bag or filter designed to catch fibers, washing less often and using full loads may help reduce this.
- Production. Virgin nylon comes from fossil-fuel-based raw materials and its manufacture is energy-intensive.
- Recycled nylon. Some nylon is made from recycled material such as fishing nets or fabric scraps. It can lower reliance on new raw materials, though it is still a synthetic fiber and still sheds fibers.
- Longevity. Because nylon is durable, buying fewer, longer-lasting pieces is one way to lessen its impact.
When to choose nylon and when not to
Nylon is a good fit for:
- rain jackets, windbreakers and packable shells
- swimwear (see sewing a swimsuit) and quick-drying activewear
- tights, stockings and some lingerie
- bags, backpacks and tough outdoor gear (see the most durable fabric)
- blends where it adds strength, such as in socks
Consider something else for:
- hot, humid weather where you want airy fabric
- sleepwear or bedding if you tend to overheat
- items worn close to skin if you find synthetics irritating
Caring for nylon
- Wash in cool or lukewarm water unless the label says otherwise.
- Use low heat when drying, or air-dry. Nylon dries fast.
- Iron only if needed, on a low setting and with a cloth between iron and fabric.
- Keep it away from open flame and very hot surfaces.
Related comparisons
If you are comparing materials, you might also look at how blends behave. Our guides to cotton vs cotton polyester blend and to whether poly cotton is soft cover polyester-based fabrics that are commonly chosen instead of nylon.
FAQ
Should I avoid wearing nylon?
Not necessarily. It suits many uses well. If you find it uncomfortable, hot or irritating, choose natural fibers or blends for those items.
What is the most unhealthy fabric to wear?
There is no single fabric that can be named with confidence as the “most unhealthy.” Fit, dyes, finishes, personal sensitivities and how long you wear a garment all play a part. If you have a specific concern, speak with a healthcare professional.
What is better, nylon or cotton?
It depends on the use. Nylon is stronger and dries faster, while cotton is generally more breathable and comfortable for everyday wear.