What’s the difference between natural and man-made fibers?
When it comes to what we wear closest to our bodies, the materials matter. Natural and man-made fibers each have their own benefits and at Netherlin, we believe there’s space (and purpose) for both in your top drawer.
Understanding the key differences can help you make more informed, intentional choices. Here’s what to know.
Natural Fibers: Breathable and Gentle on Skin
Natural fibers like cotton, wool, and silk come from plants or animals. They’re known for being:
- Breathable – Natural fibers allow air to pass through, making them ideal for warm climates or sensitive skin.
- Biodegradable – Most natural fibers break down more easily in the environment.
- Skin-friendly – Natural fabrics are often gentler on reactive or postpartum skin.
Example: Organic Pima Cotton
Our Organic Cotton Collection is made from 100% GOTS-certified organic Pima cotton. It is free from harmful chemicals, soft to the touch, and designed for everyday wear without irritation.
Man-Made Fibers: Performance-Driven and Made to Move
Man-made fibers like nylon, polyester, and spandex are engineered for specific performance needs. They offer:
- Stretch and recovery – Ideal for movement and activewear, these fibers hold shape and stay in place.
- Moisture management – Many synthetics are designed to wick sweat and dry quickly.
- Technical enhancements – Some fibers (like our antimicrobial mineral blend) offer odor-resistance and additional comfort features.
Example: Performance Mesh with Antimicrobial Minerals
Our Movement Collection uses lightweight mesh with sweat-wicking performance and embedded antimicrobial minerals to naturally inihibit unwanted odor & bacteria - this maximizes your comfort while you sweat.
Which to wear?
For restorative days, daily life or sensitive skin? Go natural and let your body breathe.
For movement, travel, or high-output routines? Man-made fibers might offer quick-drying fresh comfort.
We design with both, so you don’t have to choose between feel-good comfort and performance. Because your underwear should work for your body however it’s moving, resting, or evolving. Understanding fabric isn’t about picking sides. It’s about choosing what’s most aligned with you.