Women's Bio-Pilé Knit Jacket

The Women's Bio-Pilé Knit Jacket is a standout selection in the Fashion & Apparel category for 2026, providing a superior warmth-to-weight ratio without animal fibers. This technical knit jacket is the definitive sustainable choice for outdoor enthusiasts who demand performance without compromising their vegan ethics.

Who it's for

This jacket is designed for active individuals who need reliable insulation for fluctuating temperatures.

• Eco-conscious hikers looking for non-animal base layers.
• Urban commuters seeking a professional yet functional fleece alternative.
• Vegan athletes requiring moisture-wicking properties without synthetic microplastic shedding.

Key features & specs

How it compares

When evaluating the Women's Bio-Pilé Knit Jacket, it stands out against traditional heavy polyester fleeces and recycled wool blends. Unlike synthetic fleeces that release permanent microplastics, the Nau fabric is designed to biodegrade safely in marine environments. It offers a softer hand-feel than boiled wool while maintaining similar thermal regulation properties.

What to know before buying

1. Verify your measurements against the size chart as the cut is athletic.
2. Wash only when necessary to extend the garment's lifespan.
3. Use a delicate cycle with cold water to maintain the structural integrity of the Lyocell fibers.
4. Lay flat to dry to prevent the knit from stretching over time.

"The softness is incredible; it feels much smoother against the skin than any wool sweater I have owned, and it keeps me just as warm during my morning runs." — Verified buyer

Sustainability & ethics

Nau utilizes closed-loop Tencel production to ensure that water and solvents are recycled during manufacturing. The Bio-Pilé technology specifically addresses the microplastic crisis by using wood-based fibers that mimic the structure of sheep's wool without the animal welfare concerns or environmental degradation associated with livestock.

Frequently asked questions

Is the Women's Bio-Pilé Knit Jacket worth it?

The jacket is worth it for consumers who prioritize long-term durability and biodegradable materials over cheaper fast-fashion alternatives.

Does this jacket work for extreme cold?

It works exceptionally well as a mid-layer in extreme cold but requires a shell for wind protection.

How does it compare to merino wool?

It provides similar thermal regulation and odor resistance as merino wool while being 100% vegan and softer to the touch.

Is the fit true to size?

This Nau jacket features an athletic, slim fit, so those preferring a looser layer should size up.