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Men's AR-X Waterproof Jacket

Item # FA1757

The Men's AR-X Waterproof jacket is the only wet weather running jacket you'll ever need. An essential piece to any trail runner or adventurer's kit bag with its fully waterproof, yet breathable fabrication called VapourTex. This jacket packs neatly into its back pocket so you can easily take it on or off as the weather changes. With an adjustable belt that clips around your waist while running, you'll be free to tackle the elements unhindered. Semi-elasticated sleeve cuffs will keep cold air and rain from seeping in, while the laser cut holes in the underarms offer extra ventilation on those rainy, humid runs. Never take on the outdoors without this rainwear essential again.

Availability: In stock



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Size and Fit Guide Fit: Slim fit

In stock


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Performance Features

  • 10,000 mm Water Column & 5000 g/m2/24 h Breathability with seam-seals

    A seam-sealed jacket featuring an outer fabric with a water column rating of 10,000 mm and 5000 g/m2/24 h Breathability. This jacket will keep you dry in moderate to heavy rain conditions, whilst still providing you with comfort and breathability.

    Waterproof ratings are based on a fabrics ability to withstand a water column height (10,000mm) over a 2.5 x 2.5cm area without leaking through. The higher mm the rating, the greater the fabrics ability to prevent water leaking through. Breathability ratings are measured by how much water vapour can be transferred (MVT) through a square meter of fabric in a 24-hour period. The higher the number indicated the more breathable the jacket or fabric will be. Breathability is measured in g/m2/ 24 hours.
  • First Ascent Vapourtex

    This breathable and lightweight waterproof fabric is used for selected First Ascent outerwear and activewear garments. Garments which bear a Vapourtex Fabric mark are waterproof, keeping you protected during moderate rain conditions. Look out for seam-sealed garments, these garments will provide you with the highest level of coverage in wet weather conditions.

  • First Ascent Litespeed

    Lite Speed Series is a collection of products that have been specially developed for moving fast and light. Fabrics are lightweight and packable. Designs are minimalist and great for “done in a day” activities and weekend adventures, like adventure racing and alpine style ascents.


  • VapourTex fabric 10000 WP/5000 BR outer for superior wet weather protection
  • Seam sealed waterproof protection for added comfort during unexpected showers
  • Ideal when worn during moderate conditions
  • Generous hood with volume control to assist with improved insulation
  • Semi-elasticated sleeve cuff to keep cold air and rain from seeping in
  • Packable into back pocket with an adjustable belt that clips around your waist for ease of transportation
  • Reflective details for visibility and added safety during low light conditions
  • Laser cut holes at the underarm for extra ventilation and improved comfort




Water column rating

10 000 mm

Breathability rating

5000 g/m2/24 h

Seam sealed


Fabric technology

Litespeed, VapourTex

Weight (kg)


Designed for

Road, Running, Trail running


Slim fit

Adjustable cuff


Draw cord


Fabric Composition

100% Nylon



Laser cut detail


Reflective detail



Autumn, Winter

Underarm vents




Zip type

Coil Standard

Wash and Care Instructions

Wash separately and rinse well. After wash treat outer fabric with DWR (Durable Water Repellent) NikWax spray.
Hand Wash Only

Hand wash only

30°C Cold Water Only

30°C Cold Water Only

Low Heat Tumble Dry

Low Heat Tumble Dry
Secure zips and closures

Do Not Dry Clean

Do Not Dry Clean

Do Not Use Softener

Do Not Use Softener

Do Not Bleach

Do Not Bleach

Do Not Iron

Do Not Iron


Do you own this product? Let us know what do you think about it.

"functionality "

Excellent product with nifty features, such as it's ability to be folded into it's own pocket really allows you to quickly pack into a small space. I found it very breathable thanks to vapourtex. the technology has really made it something worth getting. withstands the wettest conditions possible.

Calen Hastie, 25 Mar 2019

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