Built for days that move seamlessly from trail to town, the Femund pureUll Longs deliver dependable warmth, breathability, and comfort in a clean, understated form. Crafted from 100% premium merino wool, these midweight base layer bottoms regulate temperature naturally—warming when conditions cool and releasing excess heat as intensity rises. Even when damp, the wool continues to insulate, keeping you comfortable through shifting weather and effort levels.

The ultra-fine 18.5-micron merino feels soft and non-itching directly against the skin, making these longs ideal for all-day wear across all seasons. A single-jersey knit with S+Z twisted yarn enhances shape retention and durability, resisting pilling and abrasion despite frequent use. Naturally odor-resistant and highly breathable, they remain fresh on multi-day trips without constant washing.

Produced with full transparency, the pureUll wool is RWS-certified and knitted and sewn in Europe, reflecting Norrona’s commitment to responsible sourcing and long-lasting performance. A regular fit with thoughtful construction ensures freedom of movement whether layered under a shell or worn on their own.

Features

• 100% premium merino wool (18.5 micron)

• Midweight single-jersey knit (165–180 g/m²)

• Naturally temperature regulating and moisture managing

• Inherent odor resistance

• Flatlock seams for chafe-free comfort

• RWS-certified wool, sewn and knitted in Europe

• Soft, next-to-skin feel suitable for extended wear

• Breathable fabric that insulates even when wet

• Durable knit resists pilling, abrasion, and snagging

• Flatlock chafe-free seams for active comfort

• Natural odor reduction for multi-day use

• Clean design suitable for outdoor use and everyday wear

Specifications

• Weight: 174 g (size M)

• Fit: Regular

• Material: 100% merino wool (pureUll)

• Fabric Construction: Medium-weight single jersey knit with S+Z twisted yarn

• Certifications: Responsible Wool Standard (RWS), Oeko-Tex® Certified Fabric