Updates to Altra HIIT XT 1.5

  • The Altra HIIT XT 1.5 is an update to the brand’s first cross-training shoe ever. At first glance, the trainer does not seem to introduce any changes, except for the new range of color options. It is still designed as a versatile CrossFit shoe with a wide platform and a 0-mm heel-to-toe differential.
  • The shoe is claimed to have an improved upper design for a more pleasant in-shoe experience. Also, the fit of the women’s model has been altered to provide a more precise fit.
  • The trainer sports the same materials for the midsole and outsole units. But, according to the brand, the midsole unit of the new iteration has been made softer and more flexible.

Size and fit

The Altra HIIT XT 1.5 comes in both men’s and women’s sizes. Widthwise, the trainer is offered in a standard D - Medium for men and in a B - Medium for women. However, the brand’s FootShape design implies a wide toe box which provides sufficient space for the toes to splay naturally. The shoe is still meant to fit snug in the heel and the midfoot.


The bottom of the shoe is wrapped in a rubber outsole which renders both protection and grip. Its lug pattern and a slip-resistant nature ensure grip on all sorts of gym surfaces. The rubber is also described as non-marking which implies that it doesn’t leave any scuffs or marks on the floor.

The side portions of the outsole protrude up to create walls on the lateral and medial sides. They deliver grip and protection during rope climbs and contribute to the foot stability during side-to-side movements.


The Dual Layer EVA foam makes up the base platform of the HIIT XT 1.5. It is a sturdy, full-length compound which protects the foot from the impact associated with intensive workouts. At the same time, it is made to be firm enough to ensure stability during weightlifting exercises.

The removable PowerSole insert is an additional cushioning component. When the unit is inside, it enhances shock absorption and energy return needed for jumping and running. Removing the insole decreases the stack height of the platform from 24 mm to 18 mm. It creates a more grounded underfoot experience and boosts stability for weight training.


The Altra HIIT XT 1.5 uses the brand’s proprietary FootShape design in the construction of its upper. It features a noticeably wide toe box which provides ample space for the toes to spread inside the footwear. That way, the big toe remains in a straight position, allowing for an efficient toe-off during running and plyometrics.

The primary material used in the upper is a quick-dry air mesh. As the name suggests, it helps in wicking the sweat away from the interiors, keeping the foot fresh. The polyurethane overlays are placed in the areas that need support and protection against the wear-and-tear.

The generously padded heel collar and tongue ensure that the foot stays securely locked in. The fit can be adjusted with the help of the lace-up closure on the instep.

Inside, the shoe has a soft lining which delivers a smooth and irritation-free experience. The stitch-n-turn stitching at the bottom allows the footwear to be worn without an insole.

Facts / Specs

Weight: Men 300g / Women 250g
Drop: 0mm
Update: Altra HIIT XT 2
Use: Crossfit / Gym / Cross-training
Width: Normal
Release date: Aug 2018
Features: Low drop

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Nicholas Rizzo
Nicholas Rizzo

Nick combines 10+ years of experience in the health and fitness industry and a background in the sciences in his role as the Fitness Research Director. During his competitive powerlifting years his PRs have him sitting in the top 2% of bench presses (395 lbs), top 3% of squats (485 lbs) and top 6% of deadlifts (515 lbs) for his weight and age. His work has been featured on Bodybuilding.com, LiveStrong, Healthline, WebMD, WashingtonPost, and many more. Along the way, collaborating with industry leaders like Michael Yessis, Mark Rippetoe, Carlo Buzzichelli, Dave Tate, Ray Williams, and Joel Seedman.