Verdict from 8 hours of research from the internet

6 reasons to buy

  • The Project Rock Delta has become a go-to training shoe for numerous users; they were able to sport it for cardio, HIIT, circuit training, weight training, and other activities.
  • A vast majority of wearers lauded the comfortable fit of the shoe.
  • Most purchasers agreed that it ran true to size.
  • The platform provided sufficient stability for deadlifting and squatting, according to a number of weightlifting enthusiasts.
  • The shoe was appreciated for being supportive, yet lightweight.
  • “The Rock”-inspired style of the trainer was admired by a considerable number of buyers.

2 reasons not to buy

  • A handful of wearers observed that the shoe ran a bit on the snug side.
  • One tester complained that the ribbed edging caused discomfort in the ankle area.

Bottom line

A significant number of training aficionados expressed their admiration for the Under Armour Project Rock Delta. Though Dwayne Johnson's promotion was what drove consumers to purchase the product, many found it to be a well-performing training shoe. It walked a fine line between support and comfort. Very few reviewers had complaints about the fit, and on the whole, the trainer delivered good value for money.

Tip: see the best training shoes.

Expert reviews:

  • Designed in partnership with Dwayne “The Rock” Johnson, the Under Armour Project Rock Delta is meant for rigorous athletic regimens. This model banks on the success of the brand’s Highlight Delta running shoe, inheriting its style and technologies. The only distinctive features of the Project Rock Delta are the Brahma Bull logo on the heel as well as the updated colorways. The more recent trainer which was designed in cooperation with "the Rock" is the Under Armour Project Rock 1.
  • The midsole utilizes the Charged Cushioning system which comprises of two layers. A softer foam layer is placed on top of a denser EVA compound to offer a balance of comfort and stability.

The Under Armour Project Rock Delta caters to male athletes. The sizes range from 7 to 15 and typically run true to the sizing scheme. The shoe also follows standard measurements in terms of width and is offered in a D – Medium profile. The toe box is designed to be spacious to allow for a natural toe-splay.

The Project Rock Delta employs solid rubber patches in the areas that are most prone to abrasion. Their textured design also contributes to the traction capability of the outsole.

The deep flex grooves in the forefoot make sure that the flexibility of the foot is not hindered during the constantly varied training activities.

The brand’s proprietary Charged Cushioning system makes up the midsole unit of this workout shoe. It is a two-piece construction with a soft foam compound on top of a dense EVA layer. The softer piece offers comfort and cushioning, while the harder one ensures support and stability.

A ribbed collar extends up to wrap the ankle in a supportive, yet non-restricting way. A plush foam material inside the collar contributes to the comfortable fit.

The molded heel cup is added to create firmer support in the rearfoot. It is meant to prevent the heel from wobbling, especially during weight training.

The lacing system is complemented by the deeply-cut eyestays to make the upper more adjustable to the movement of the foot.

Size and fit

True to size based on 15 user votes
Small (33%)
True to size (53%)
Large (13%)
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Size comments

Sizing is pretty consistent to other Under Armour shoes and for the most part is true to size. - As Many Reviews As Possible

How Project Rock Delta compares

This shoe: 75
All shoes average: 84
57 97
This shoe: £140
All shoes average: £90
£30 £290
This shoe: 306g
All shoes average: 290g
110g 454g
Nicholas Rizzo
Nicholas Rizzo

Nick is a powerlifter who believes cardio comes in the form of more heavy ass squats. Based on over 1.5 million lifts done at competitions, his PRs place him as an elite level powerlifter. 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 Forbes,, Elite Daily and the like. Collaborating along the way with industry leaders like Michael Yessis, Mark Rippetoe, Carlo Buzzichelli, Dave Tate, Ray Williams, and Joel Seedman.