Arc'teryx Incendo Pant

The Arc'teryx Incendo Pant weighs 6 ounces and features Fortius Air 50 nylon (84% nylon, 16% elastane) for lightweight, breathable performance. Designed to take the bite out of cold or damp runs with four-way stretch for unrestricted mobility. Slim fit and articulated design ensure natural movement. DWR finish provides light moisture protection. Elastic waist with drawcord and adjustable cuffs for a secure fit.

Made with Fortius Air 50 nylon, these pants offer four-way stretch for hiking and trail running. The breathable fabric keeps me cool and dry during high-output efforts. Drop-in hand pockets and a flapped back pocket store essentials. The slim fit eliminates excess fabric without restricting movement.

If it's chilly outside, I can get by with just these pants. If the temperature drops below 40 degrees, I will comfortably wear them with a base layer underneath. I would say these pants are very durable. They have been with me for a while, and after multiple washes, the only thing that looks off is a little white stain. I also have the Incendo Hoody, and this material feels slightly thicker. I have also worn these pants on desert hikes, and they did fine.

Why Fortius Air 50 Nylon Excels for Trail Running

The Arc'teryx Incendo Pant uses Fortius Air 50 nylon for exceptional breathability. The 84% nylon and 16% elastane blend balances airflow with structure. Keeps me cool during hard efforts.

The four-way stretch provides unrestricted mobility. The fabric stretches in all directions during running strides and climbing moves. The elastane content maintains shape without sagging.

The ultralight 6-ounce weight barely registers. Minimal weight during long runs. Lighter than traditional running pants that weigh 8-10 ounces.

The quick-drying performance handles moisture efficiently. Sweat evaporates rapidly during climbs. The fabric dries completely within hours. I usually wear it with the Incendo Hoody when it's cold out.

Arc'teryx Incendo Pant Slim Fit and Articulation

The slim fit provides a streamlined profile without excess fabric. The fitted cut reduces wind resistance during running. Clean appearance transitions from trail to casual settings.

The articulated design follows the natural movement of the leg. Pre-shaped construction allows running strides without restriction. Better mobility than straight-cut running pants.

The four-way stretch fabric works with the articulation. The combination creates exceptional mobility for dynamic movement. The stretch accommodates climbing and scrambling on technical trails.

The fit eliminates fabric bunching behind the knees. No irritation during long runs. Comfortable enough for multi-hour efforts.

DWR Finish and Moisture Management

The DWR finish provides light moisture protection. The coating sheds light rain and trail spray. Brief showers don't penetrate the fabric. The weather resistance works well for variable conditions.

The highly breathable construction prevents overheating. The fabric vents heat during hard efforts. The quick-drying performance handles sweat efficiently. Moisture wicks away from skin rapidly.

If it's chilly outside, I can get by with just these pants. The breathability regulates temperature well. If the temperature drops below 40 degrees, I will comfortably wear them with a base layer underneath. The layering flexibility handles variable conditions.

The material feels slightly thicker than the Incendo Hoody. More substantial fabric for pants durability. Still maintains excellent breathability. The thickness balances protection and ventilation.

Adjustability and Fit Features

The elastic waist with drawcord adjusts fit precisely. The drawcord fine-tunes waist tension. The elastic provides comfortable stretch without binding. No pressure points during movement.

The adjustable cuffs secure a fit around the ankles. Cinch them down to prevent riding up. Open them for a looser fit. The adjustment prevents cold air from entering during cool runs.

Drop-in hand pockets provide convenient storage. Easy access during runs without zippers. Large enough for a key or energy gel. The pockets sit at a natural hand position.

The flapped back pocket secures a phone or wallet. The flap prevents items from bouncing out. Sufficient capacity for a smartphone. The placement keeps the weight centered. I can wear it with the Aptin Zip Hoody for cold-weather running warmth.

Durability and Long-Term Performance

I would say these pants are very durable. They have been with me for a while. The Fortius Air 50 nylon handles rugged terrain without tearing.

After multiple washes, the only thing that looks off is a little white stain. The fabric maintains performance through repeated laundering. No degradation in breathability or stretch.

I have also worn these pants on desert hikes, and they did fine. The fabric resists abrasion from desert vegetation. The versatility spans multiple terrain types.

The construction quality justifies the investment. The seams remain intact after years of use. Add the Rho Glove for complete cold-weather running comfort.

When I Use the Arc'teryx Incendo Pant

Cold or damp runs: Designed to take the bite out of cold or damp runs. If it's chilly outside, I can get by with just these pants. The breathable fabric prevents overheating while providing light protection. The DWR finish sheds moisture during damp conditions.

Cool-weather running: If the temperature drops below 40 degrees, I can comfortably wear them with a base layer underneath. The layering flexibility handles variable temperatures. The breathability prevents sweat buildup even when layered.

Trail running: The four-way stretch accommodates running strides on technical trails. The slim fit prevents the fabric from catching on the brush. The articulated design moves naturally during climbs and descents. The lightweight construction reduces fatigue on long runs.

Desert hiking: I have also worn these pants on desert hikes, and they did fine. The breathability handles hot, dry conditions. The DWR finish sheds dust. The durable fabric resists desert vegetation.

Arc'teryx Incendo Pant vs Heavier Running Pants

The Incendo Pant prioritizes ultralight, breathable performance at 6 ounces. Heavier running pants typically weigh 8-10 ounces or more. The weight savings reduce fatigue on long distances.

The Fortius Air 50 nylon provides superior breathability. Heavier fabrics restrict airflow. Better temperature regulation during high-output efforts.

The slim fit eliminates excess fabric. Baggy running pants create wind resistance. The streamlined profile performs efficiently.

The quick-drying performance surpasses heavier materials. The Incendo dries rapidly after rain or sweat. Better comfort during variable conditions.

Worth the Investment?

For trail runners and hikers seeking ultralight pants, yes. The Arc'teryx Incendo Pant delivers exceptional breathability at 6 ounces. The four-way stretch provides unrestricted mobility. The DWR finish offers light moisture protection. The slim fit eliminates excess fabric.

For cold weather only, no. The lightweight fabric lacks insulation. Better options exist for winter running. The Incendo excels in cool to mild conditions.

For runners who value durability, absolutely. I would say these pants are very durable. They have been with me for a while, and after multiple washes, the only thing that looks off is a little white stain. The construction handles rugged terrain. The versatility spans trail running and desert hiking.

Better for ultralight performance: Incendo Pant at 6 oz
Better for cold weather: Insulated running pants
Better for versatility: Works for running and hiking
Better for breathability: Fortius Air 50 nylon

If it's chilly outside, I can get by with just these pants. If the temperature drops below 40 degrees, I will comfortably wear them with a base layer underneath. I also have the Incendo Hoody, and this material feels slightly thicker. The pants take the bite out of cold or damp runs while maintaining breathability.

Specs

Model: Incendo Pant
Weight: 6 oz (ultralight)
Material: Fortius Air 50 nylon (84% nylon, 16% elastane)
Performance: Highly breathable, quick-drying, four-way stretch
Fit: Streamlined, slim fit, articulated for mobility
Moisture Management: DWR finish for light moisture protection
Durability: Resists rugged terrains, proven long-term performance
Adjustability: Elastic waist with drawcord, adjustable cuffs
Pockets: Drop-in hand pockets, flapped back pocket
Best for: Trail running, cool weather running, hiking, cold or damp runs
Not ideal for: Cold weather below 40°F without a base layer, heavy rain (lacks full waterproofing)
Activities: Running, hiking, trail running, desert hiking
Temperature range: Cool to mild conditions, 40-65°F range (can layer below 40°F)
Unique features: "Take the bite out of cold or damp runs," very durable, material feels slightly thicker than Incendo Hoody, works on desert hikes, "chilly outside can get by with just these pants," below 40°F comfortably wear with a base layer underneath
Care: Machine wash cold, tumble dry low
Durability note: "Been with me for a while, after multiple washes only thing that looks off is a little white stain."

Find current availability at Arc'teryx.