
Speed
Heard much about the Mach 4 and it definitely lives up to the hype! Fits true to size (UK 8.5/US 9), may not appear to be built like one of those high stacked race shoes (I own a Vaporfly Next too) but offers good amount of support, is lightweight enough to crunch some speed. It’s a keeper fit for weekly rotations - very versatile for tempo or even recovery runs! Love it!