This jacket has been discontinued.
The REI Airflyte Running Jacket was the most techy and durable wind jacket we tested. Some other wind jackets felt like trash bags compared to this. However, it is also least versatile and we had trouble determining exactly where it fit into our athletic apparel quiver. Many of the other jackets in this review were about as expensive. However, they also worked in a wide range of activities and offered emergency rain protection, wind protection, and even sun protection in warmer temps. The Airflyte on the other hand seems to have a much narrower use: running in 20-50 degree temps in dry conditions to a light drizzle. If those are the conditions you run in, this jacket might be perfect.
We mainly ran, biked, and hiked in this jacket in 40-60 degree temps where we found it less useful. For a running jacket, we lean more toward the Marmot DriClime, which is about half the cost, lighter, and better at managing sweat. Or, if lightweight travel is a top priority, we recommend the Patagonia Houdini or our Editors' Choice, the Arc'teryx Squamish Hoody. Both jackets are the about the same cost as the Airflyte but more versatile. They will double as emergency rain and snow jackets and seal you off from high winds.