Earlier this year, Nike introduced the LunarEpic Flyknit, a shoe it claimed represents “the future of running.” Trademark to the new shoe is the integrated ankle cuff, a design feature borrowed from Nike’s Magista soccer boot, which mimics the look of a mid-cut sock. But that collar design wasn’t to everyone’s running style, so Nike is now shipping a low-cut model that retains the rest of the innovative features of the original model while eliminating the sock.

The new Nike LunarEpic Low Flyknit features a one-piece, highly breathable fabric upper with different densities to provide a snug fit across the arch, heel and forefoot. Flywire cables are knitted in across the upper where the laces loop into the shoe for further support.

What really sets the LunarEpic apart is its sole. The midsole, while still comprised of Lunarlon – Nike’s proprietary lightweight foam – is two materials fused together using heat rather than glue, all in an effort to save weight. The sides of the midsole have thin grooves Nike calls “laser siping” running parallel to the ground that provide additional flex and cushioning upon compression.

On the outsole, or bottom of the shoe, are five laser-siped “geometric pistons” that are essentially concentric circular pads. Nike says that the outsole was patterned after the pressure points of the foot as it strikes the ground when running. Each piston is free to move individually, which not only enables a great deal of flex, but also surprisingly a great deal of traction.

The LunarEpic Low Flyknit retails for $160 ($15 less than the mid-cut model) and comes in two colorways for both men and women, or can be made custom to your style with Nike iD for $200.