A warm, highly breathable pant for mountain runs in frigid, dry conditions, the Norvan Insulated Bottom uses a hybrid design to balance airflow, thermal performance, and durability. At the top of the leg, Fortius Air 20 fabric delivers air permeability and wind resistance, and lightweight Coreloft insulates. Below, breathable Chira™ nylon knit adds ventilation. All the materials stretch to free your stride, and a long ankle zip opens wide to easily fit over your shoes.

Norvan
High performance trail running systems for extended high output in challenging terrain.

Trail
For technical mountain activities, durable and protective designs with a focus on freedom of movement for remote and varied conditions.

Insulated
Thermally insulated products that provide efficient warmth and protection from the elements.

Composite
Maximizes user benefit through the strategic placement of different materials within the design.

Synthetic Insulation
Man-made insulation with quick dry times, durability and retains warmth when damp.

Technical Features
Moisture-resistant outer face fabric
Breathable
Lightweight
Wind resistant
Air permeable
Warm and comfortable

Construction
Fortius™ Air 20 face fabric effectively balances air permeability and weather resistance with lightweight durability
Warm, resilient Coreloft™ synthetic insulation provides thermal performance and retains loft
Chira™ nylon material inserts provide exceptional four-way stretch and breathable comfort
Minimal seam use and dynamic seam placement help eliminate distraction and improve freedom of movement

Design & Fit
Garment Inseam: Size 4-S (Short) is 29"/74cm, Size 4-R (Regular) is 31"/79cm, Size 4-T (Tall) is 34"/86cm — Inseam varies by size
Design eliminates the outseam to reduce potential chafing and enhance comfort
Regular fit with a high rise, tapered leg, ergonomic patterning, and run-specific articulation for mobility and comfort

Fabric Treatment
FC0 DWR (Durable Water Repellent) finish repels moisture and is PFAS-free

Logos & Label Configuration
Reflective logo adds visibility in low light situations

Pocket Configuration
Integrated back pocket stores gels, smartphone, or small essentials

Sustainability
Contains materials that meet the bluesign® criteria
Biocidal Disclosure - This model was treated with an anti-odour biocidal product (Active Ingredient: Silver Nitrate)
PFAS (Per- and polyfluoroalkyl substances) Compliant

Waist & Belt Configuration
Adjustable elastic mesh waistband for a secure fit and breathable comfort

Weight 185g / 6.5 oz
Fit Regular
Activity Mountain Run
Model X000008471
Manufacturing Facility
Viet Thuan Apparel Company Limited (Rsi), Vietnam

Measurements are in inches

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