Take 20% Off One Full-Price ItemApply to Cart or use 20MORE at Checkout

Detail Images

  • Arc'teryx - Chest pocket
  • Arc'teryx - Cuff
  • Arc'teryx - Inner pocket
  • Arc'teryx - Chest pocket
  • Arc'teryx - Detail
  • Arc'teryx - Burner
  • Arc'teryx - Cuff
  • Arc'teryx - Detail
  • Arc'teryx - Detail
  • Arc'teryx - Alpha FL Jacket - Men's - Magma
  • Arc'teryx - Alpha FL Jacket - Men's - Rohdei
  • Arc'teryx - Alpha FL Jacket - Men's - Stingrey
  • Arc'teryx - Chest pocket -
  • Arc'teryx - Cuff -
  • Arc'teryx - Inner pocket -
  • Arc'teryx - Chest pocket -
  • Arc'teryx - Detail -
  • Arc'teryx - Burner -
  • Arc'teryx - Cuff -
  • Arc'teryx - Detail -
  • Arc'teryx - Detail -

Current Color

  • Arc'teryx - Alpha FL Jacket - Men's - Magma
  • Arc'teryx - Alpha FL Jacket - Men's - Rohdei
  • Arc'teryx - Alpha FL Jacket - Men's - Stingrey

Arc'teryx Alpha FL Jacket - Men's


Free 2-Day shipping on orders over $50*

Select a Size:

Select options
  • Select options
    • S
    • M
    • L
    • XL
    • XXL

    Select a Color:

    Select options
  • Select options
    • Magma
    • Rohdei
    • Stingrey

    3 Reviews


    A minimalist fortress for fast-and-light alpine ascents.

    Lining up 12 pitches in a day is a serious endeavor, and while you'd prefer to do it in perfect weather, sometimes that's not just how things go, so you need an ultra-light rain shell like the Arc'teryx Alpha FL Men's Jacket. The lightest Gore-Tex Pro jacket that Arc'teryx makes, the FL (Fast and Light, if you were wondering) is the speed demon of the climbing-and-alpinism-oriented Alpha series, with a lightweight 3-layer design, waterproof and breathable membrane, and taped critical seams to keep you dry without any extra bulk.

    Unlike average shells, the FL is designed specifically with climbers in mind. It has a trim fit to eliminate any extra material, and an e3D ergonomic design that's articulated in all the right places to facilitate climbing movements The slim profile also makes it easy to see your harness, so you don't waste time and energy trying to grab piece of gear from it, while the removable HemLock foam hem inserts keep your jacket from sliding up under your harness and leaving you exposed. The helmet-compatible StormHood adjust with a single-handed pull, and the entire package stuffs into the included stuff sack and clips onto your harness with a webbing loop, making it easy to carry and quickly accessible when the clouds gather.

    • Complete protection from the weather in a lightweight package
    • 3-layer Gore-Tex fabric provides breathable, waterproof defense
    • Harness-compatible design ensures you have full range of motion
    • Regular fit has room for layers without being too baggy
    • Helmet-compatible hood doesn't compromises safety in weather
    • Item #ARC00MR

    Tech Specs

    N40p-X GORE-TEX Pro 3L
    Gore-Seam taped
    1 chest zip
    Claimed Weight
    Recommended Use
    hiking & camping, climbing, backcountry touring
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?


    • Familiarity: I've used it several times

    They (Arc'teryx) definitely make THE BEST hardshells in the market. I have both the Alpha FL and the Alpha SV and love them. I have to say though that my favourite one is the Alpha FL. I work as a professional outdoor guide in the Andes of Peru and over the past years I've tried several rain jackets from different brands. The Alpha FL fits perfect, it is packable, VERY light and rough.

    The only downside for most will be the absence of ventilation pit zips, but if you use an adequate layering system underneath the shell you won't be clammy nor heat up as much!. Hand warmer pockets are also absent, which, unless you want to use this for wearing around town, should not be a problem. Personally, I never used the handwarmer pockets of my other jackets because when i'm on the go, I generally have my hands busy holding the hiking poles or a camera. If you tend to get cold hands easily, then just get a pair of softshell gloves + liner to have both hands warm and operating.

    The Alpha FL will be perfect for most people. Is good for hiking, backpacking, traveling, etc. Just get this jacket. You won't regret!. This garment is designed to be worn with a base layer plus a midweight insulated layer. If you intend to wear it using more than 2 layers underneath for freezing winter conditions, then go one size bigger than usual.

    If I had to choose ONLY one hardshell, this would be it! Is just perfect for any outdoor adventure where you want to have reliable potection without carrying a bulky/heavy jacket!

    I love this jacket

    • Familiarity: I've put it through the wringer

    This is agreat jacket for several reasons:
    - ultra light
    - awesome color (Rohdei green)
    - good sizing (nor perfect)
    - great material
    Now, I wisj you could collapse it into the chest pocket, instead you have a little bag attached that can be easily lost if you are not careful. I totally trust this jacket, after 40 miles winds and frozen rain it was a bomber.
    It fits a little big when using it without any layers but it's perfect on top of my fleece and my down jackets.

    Initial impressions

    • Familiarity: I've used it once or twice and have initial impressions
    • Fit: True to size
    • Size Bought: Medium
    • Height: 5'10"
    • Weight: 175lbs

    I just picked up the new version of the Alpha FL in the Stingrey colorway. First, the color is way better than I initially thought it would be. It stands out without "standing out" if that makes any sense. 2nd, the previous iteration was a fantastic piece and while a lot of the improvements won't be totally noticeable, the one that stood out to me was the cinch system on the hem. It's super easy to use and should work really well keeping it under a harness(I've always loved the hemlock feature and this is essentially a substitute for that). The hood is also easy to adjust and fits incredibly well over my helmet. Next, the 3 layer construction, 40D face fabric, and weight make this a super functional and packable, yet durable piece. It weighs less and packs up smaller than my Paclite rain shell, which is pretty nuts. Sizing: I tried both the Large and the Medium and ended up going with the M. It's a really good fit that allows for adequate layering but isn't bulky when just wearing over a tee. The L was a bit long at the waist and way too long in the arms. I'm 5'10 175 and my arms are as long as I am tall. Super excited to use this for alpine season and into touring season next year and will update when I get some real use out of it.