Men's Alpha FL Jacket

Select Color/Size
Free Shipping
For Orders over $200
Past season

Designed for climbers and alpinists wanting to travel fast and light in the mountains, the Alpha FL is the lightest and most breathable GORE-TEX® Pro jacket by Arc'teryx. It provides a weather-proof protection that is both waterproof and windproof. The fitted cut and minimal features provide optimal breathability with the minimum weight.

Arc'teryx standards are high. From creation to production, all the products are tested, researched and go through a strict quality control.

Lightweight weather protection for increased speed

The Alpha FL is built using the N40p-X GORE-TEX® Pro 3L membrane, providing a supple yet durable face fabric. The jacket is also enhanced with essential climbing features such as a helmet compatible StormHood™, a two piece Hemlock™ harness blocker, in addition to a harness and pack compatible chest pocket.

Alpha FL Jacket Features

Highly durable, the N40p-X GORE-TEX® Pro 3L delivers lightweight, long wearing waterproof protection with a high level breathability. The jacket uses the lightest material possible for the construction such as narrow GORE® seam tapes and micro seam allowances, thus reducing the weight of materials, increasing breathability and creating supple, free moving garments. The helmet compatible StormHood™ features a laminated brim, adjustable hood cinch cords and a tall collar for full coverage. Also, it features the lightweight and removable harness Hemlock™ insert, which is designed to keep your jacket in place when worn under a climbing harness.

  • Helmet compatible StormHood™
  • Trim fit with e3D patterning provides freedom of movement
  • Strategic 8mm seam tape for increased breathability
  • WaterTight™ centre front zipper
  • External chest pocket with WaterTight™ zipper
  • Stuff sack with clip-in loop


To help you better understand their products, Arc'teryx has created categories: SV is severe, AR is all-round, LT is light, FL is fast and light, and SL is super light. With the Alpha FL, the term FL denotes a range of minimalist garments designed to be very light with high performance, for travelling fast and light in variable weather conditions.

Materials : N40p-X GORE-TEX® Pro 3L
Insulation :
Fit : Fitted
Hood : Yes
Pockets : External chest pocket with WaterTight™ zipper
Weight : 325g / 11.5oz
Recommended use : Climbing and Alpine Climbing
Waterproof : N40p-X GORE-TEX® Pro 3L
DWR finish (Durable Water Repellent)
Fur : No
Warranty : Lifetime of the product