Good to know
The Altra HIIT XT is the brand’s first shoe designed specifically for cross-training. Altra is well-known among the running community for its production of the ZeroDrop platform. The HIIT XT also employs this feature to promote the natural positioning of the foot.
The HIIT XT utilizes a wraparound gum rubber outsole, which extends to the lateral and medial sides of the upper. It provides support during lateral movements, as well as protection against abrasion during rope climbs.
A sticky rubber compound delivers grip and traction on various surfaces. Rubber is also a durable material that makes the shoe’s underfoot area last longer.
The EVA PowerSole platform in the Altra HIIT XT works together with the wraparound outsole to enhance lateral support and steadiness of the foot. It also employs the A-Bound for shock absorption and energy return.
Cushioning is provided by the 5 mm sculpted footbed. It can be removed if the wearer prefers a less cushioned and more grounded underfoot feel. In this case, the stack height goes down from 24 mm to 18 mm.
The shoe features Altra’s renowned ZeroDrop construction, which means that there is no “drop” or difference in the elevation of the sole unit. Thus, the foot remains in flat disposition, which promotes its natural movement.
The upper unit of the Altra HIIT XT makes use of the combination of air mesh and synthetic overlays to offer a snug and breathable fit. The air mesh also makes sure that the shoe stays dry by wicking off any moisture. The toe box and the heel counter are reinforced with a thicker synthetic material for additional support.
The collar and the tongue make use of thick padding to deliver some cushioning to the uppermost areas of the foot. They also prevent the wobbling of the foot during the exercise.
The additional eyelets near the ankle allow a lockdown fit by causing the laces to pull on the back portion of the shoe’s façade. Altra makes an attempt to provide an even more comfortable fit in the next iteration of the shoe, the HIIT XT 1.5.