Arcteryx Alpha FL Review

Likes
The Arcteryx Alpha FL is the lightest hardshell tested with a full-length zipper. It weighs 1.2 oz. more than the lightest shell tested (Mountain Hardwear Quasar) and is therefore the lightest jacket that uses Gore-Tex Active Shell. Active shell, though more breathable than Gore Pro Shell, is slightly less breathable than the Quasar, which uses an air permeable Dry Q Elite membrane. The difference in breathability is slight, and while the Quasar scored one point higher in that category, the Alpha FL scores two points higher in the durability category. Why is it more durable? Answer: the Alpha FL uses two types of face fabric. N30p-X (the 30 denier version of the Alpha SV's n80p-X) covers the torso while the more durable n40p-X reinforces the shoulders, hood, and elbows. In comparison, the Quasar uses a superlight 15 denier face fabric that we found to be significantly weaker. Disregarding specific features, is this increased durability worth the extra 1.2 ounces? Absolutely!!

Features
The Alpha FL has one external zippered chest pocket, a helmet compatible hood, and velcro wrist closures. The jacket is simple and these features are exceptionally well designed, just like the company's Alpha SV.

The Alpha FL intentionally and intelligently omits pit zippers (Active Shell is sufficiently breathable and you can vent through the main zipper). The jacket is cut very trim- similar to the Mountain Hardwear Quasar. Skinny people will have room for a lightweight fleece or insulated jacket, but this piece is not designed for standing around in cold, bad weather. Like all Active Shell jackets, the Alpha FL is meant for high exertion activities.

Dislikes
As with any hardshell, it’s important to layer properly while wearing the Alpha FL. The jacket doesn’t have pit zips so just be sure to dress appropriately. People with larger builds might find the Alpha FL to be too slim- try the next size up. Finally, the Alpha FL’s expansive helmet compatible hood could be drawback for non-climbers. Though the hood is very comfortable when worn without a helmet, hikers will have no need for such a large hood. When compared to ultralight rain shells (7oz), however, the Alpha FL's increased durability makes it a great choice for extended ultralight trips or for anyone who wants something that lasts. All-in-all, the Alpha FL is lightweight, compact, has excellent features, and isn't super fragile. What more could you ask for?

Best Application
The Arcteryx Alpha FL is best suited to fast and light climbing, but it works very well for hiking, backcountry skiing, and as an insurance piece.

Value
The Alpha FL offers the best bang for your buck in ultralight hardshell jackets.

Other Lightweight Arcteryx Hardshells
Arcteryx offers two other noteworthy lightweight shells that we didn't test. The pocket design is the main thing that separates them from the Alpha FL (all use Gore Active Shell). The Tecto FL (Spring 2013) skips all chest pockets and is made entirely of the Alpha FL's lighter, less durable material- it's the company's lightest shell. The Beta FL ($50 more than the Alpha FL) steps in at a few ounces heavier than the Alpha FL and Tecto FL and adds two chest high handwarmer pockets- best for around town. Choosing between these comes down to pocket design and durability. Our testers find the Alpha FL's single chest pocket useful, but don't believe the Beta FL's additional pocket and additional $50 cost to be worth it.

The women's version of this jacket is the Arcteryx Alpha FL - Women's which is the same price, a little lighter, and comes in different colors and a different cut.