Weather-shedding
Compared to other jackets in this test, the Fast-Wing underperformed in terms of weather resistance. The Fast-Wing’s DWR fabric beaded water for only a few minutes during our shower test before the moisture found it’s way through zippers and seams. These characteristics make the Fast-Wing better suited for activity in cool and dry environments.

Breathability
The Fast-Wing is the most breathable jacket in this test, thanks to thoughtful design by Salomon. The ultralight fabric of the piece allows air exchange with the outside, plus gaps in the fabric at the armpit allow heat to escape from warm areas. Another feature to aid ventilation lies beneath the front zipper at chest level – a fabric tab with snap closure. Using the snap, the jacket user can keep the front zipper unzipped with front panels connected at the chest, preventing excessive flapping.

Function
Salomon pared down an already lightweight piece by omitting cinch pulls on the hood and waist; instead, simple elasticized fabric holds the jacket in place. The fit of the jacket on each tester decided whether this feature was a need or nuisance. Users looking for more adjustability in their running shell should look to others in this test.

Fit/Comfort
Salomon produced the Fast-Wing’s snug fit with the athlete in mind, utilizing articulated sleeves and motion fit technology. Our tester’s recommend sizing up if the user is looking for room. Highly mesomorph athletes may find the jacket’s shoulders and chest are tight. The Fast-Wing’s fabric is comfortable when worn on bare skin for those runners looking for a closer fit.

Packability
The Fast-Wing’s unbeatable weight and paper-thin fabric make it the second best packing jackets in the test. The zippered chest pocket inverts to contain the jacket in a soup can sized package.