- 690
- 1,660
My vaporfly outsoles show noticeably less wear than my AF for similar mileage. The burn rate on the AFs for my foot strike and weight is scary.The outsole on the Alphas seem thicker and potentially more durable than any version of the Vapor Fly, but that's not saying a whole lot compared to typical daily trainer durability. If you can afford it, go for it.