The Mizuno Wave Hayate 2 is the lightest and most aggresive model for racing or fast workouts within trail running shoes from the japanase manufacturer.
The Wave Hayate 2 focus on brand new upper from its predecessor the Wave Hayate where lateral logo is no longer printed on the mesh but stitched to join lace area with sole wall for better fit. Breathability has been dramatically improved with new open mesh in the front side, an approach taken from the popular Wave Sayonara 3. The other major change which also takes place in Wave Mujin 2 and Wave Kazan 2 is the replacement of the underperforming on uneven terrains U4iC foam with tested and durable AP+ in the midsole.
The Wave Hayate 2 keeps what worked fine in its predecessor the Wave Hayate. Outsole design and materials didn't change at all with bidirectional rubber for great grip on wet surfaces and durable X-10 carbon rubber on most exposed wear areas for heel strikers. Besides the AP+ foam in the midsole mentioned above, cushioning relies on the well known concave Wave for smooth ride. Midfoot's X groove allows better uneven ground adaptation with enhanced flexibility.