When it comes to how clothing feels, moves, and ages, animal-based fabrics stand in a category of their own. These materials tend to feel softer, warmer, and more fluid than many plant-based fibers — and there’s a reason for that.
Animal fibers are made from protein rather than cellulose, which gives them very different properties in terms of insulation, elasticity, and drape. Understanding these differences helps explain why a wool sweater behaves differently from linen, or why silk feels so distinct against the skin.
What Are Animal-Based Fabrics?
Animal-based fabrics are fibers sourced from animals, most commonly from hair, fur, or secretions. Some of the most well-known examples include:
• Wool (sheep, alpaca, cashmere goats)
• Silk (produced by silkworms)
• Cashmere (from goat undercoats)
• Alpaca (alpaca fleece)
These fibers are naturally insulating, breathable, and often more elastic than plant-based fabrics, which contributes to their softness and ability to retain shape over time.
Why Animal Fibers Feel Warmer and Softer
Unlike plant fibers, animal fibers have a natural crimp or structure that traps air. This trapped air acts as insulation, helping regulate body temperature.
That’s why:
• Wool keeps you warm without overheating
• Cashmere feels light but insulating
• Silk can feel cool or warm depending on how it’s worn
Because of their protein structure, animal-based fabrics also tend to have more natural stretch, which contributes to comfort and movement.
Common Animal-Based Fabrics and Their Characteristics
Wool
Wool is durable, resilient, and naturally odor-resistant. It regulates temperature well and can withstand repeated wear when cared for properly. Different types of wool vary widely in softness and thickness.
Cashmere
Cashmere is prized for its softness and warmth. It’s lighter and finer than most wool but also more delicate, requiring gentler care.
Alpaca
Alpaca fiber is warm, lightweight, and naturally hypoallergenic. It tends to be smoother than sheep’s wool and has less natural lanolin.
Silk
Silk is smooth, breathable, and known for its subtle sheen. It drapes beautifully and feels cool against the skin, making it popular for layering and transitional pieces.
Longevity and Care Considerations
Animal-based fabrics often last a long time, but they do require thoughtful care. Gentle washing, proper storage, and avoiding excessive heat help maintain their structure and softness.
Because these fabrics are often more delicate, understanding how to care for them can significantly extend their lifespan.
A Note on Sustainability
Animal-based fabrics are natural and biodegradable, but sustainability depends heavily on sourcing, processing, and care. When chosen intentionally and maintained well, these materials can be worn for many years — which plays a meaningful role in reducing overall consumption.
Understanding the fabric itself is the first step toward making more informed, long-lasting wardrobe choices.
Thanks for following allow in this series, so we can all understand what fabrics we are buying, and putting on our bodies, Danniella <3