Hoka Cielo X 2 MD Spikes Lightweight. Propulsive. Exhilarating. A tip-of-the-spear product geared for elite athletes, the new Cielo X 2 MD has been overhauled with refinements underfoot and a newly designed upper. Lace Knit Upper Engineered specifically for middle distance racing (800m-3K), Hoka have employed an ultra-light, lace-knit upper for a breathable, race-ready fit. This breathable upper material allows air to circulate freely to the foot, therefore, increasing the ventilation and keep your feet cool in the process. Finishing off the upper is a traditional lace-up system, ensuring the feet stay locked in and prevent in-shoe slippage. Super Critical Foaming Midsole Process and 6-Pin Pebax Spike Plate Utilizing a new, super critical foaming process combined with a slightly stiffer Pebax spike plate, this new iteration delivers a snappier, faster ride. This snappier, new foam in the midsole provides you with a perfect amount of cushioning for middle-distanc