We spent 8.1 hours reading reviews from experts and users. In summary, this is what runners think:

6 reasons to buy

  • Many buyers have enjoyed wearing the Ultraboost Laceless because of its comfortable feel and lightweight build.
  • One consumer said that the cushioning was impressive, as well as sturdy and plush.
  • The snug midfoot area has brought about a more stable ride, according to a reviewer.
  • A majority of users appreciated the stylish look of this running shoe.
  • The outsole technology was very efficient and has excelled in both wet and dry conditions, as mentioned by a runner.
  • A reviewer stated it was surprisingly supportive despite the lack of shoelaces.

3 reasons not to buy

  • Some users said the ribbed texture on the upper made the shoe look unpleasant and awkward to touch.
  • Extended running sessions with this shoe caused the toes and heel to feel uncomfortable, a runner observed.
  • A couple of wearers reported bruising their ankle after using the shoe for some weeks.

Bottom line

A lightweight shoe that is heavy on performance, the Adidas Ultraboost Laceless has won many runners over with its simple structure and efficient features. A good majority of users celebrated the shoe for its above-average performance. It is a good option for female runners who are looking for a street-ready running partner.


Base model: Adidas Ultraboost
Terrain: Road
Arch support: Neutral
Weight: Men: 10.5oz
Heel to toe drop: Men: 10mm
Pronation: Neutral Pronation
Arch type: High arch
Use: Jogging
Features: Slip-on
Strike Pattern: Heel strike
Distance: Daily running | Long distance | Marathon
Heel height: Men: 29mm
Forefoot height: Men: 19mm
Release date: Aug 2017
Brand: Adidas
Width: Men: Normal | Women: Normal
Price: $200
Colorways: Black, Blue, Green, Grey, Multi, Pink, Purple, White
Special editions: 4 special editions
Small True to size Large
See more facts


A top rated Road running shoe
A popular pick
It has never been more popular than this February

Expert Reviews

Experts are runners, who post reviews at youtube, directly at RunRepeat or at their own websites. Each expert is categorized from level 1 to level 5 based on expertise. See stats on expert reviews and how we calculate scores here.

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81 / 100 based on 3 expert reviews

  • 91 / 100 | bigfootLIFE | Level 1 expert

    They hug your feet in such an interesting way... Every single part of it maximizes and sucks down on your feet.

  • 90 / 100 | OhItsTeddy | | Level 1 expert

    These are super comfy... I would say they're much more comfortable than the Uncaged Ultra Boost.

  • 75 / 100 | Shoeguide | Level 3 expert

    so if you’re looking for a different pair of running shoes that can survive a long mile, a hard sprint, or a casual walk around the mall, give these Asics a try.

  • First look | UNBOXING Fashion & Sports

  • First look | London Boy Blog

  • First look | Shoes Gather

Become an expert

  • The Ultraboost Laceless is a road running shoe that is ideal for neutral pronators. With an unusual construction, it aims to be an innovative running shoe as it does away with the concept of tying shoelaces.
  • Featuring a Primeknit upper that promotes comfort by bringing a sock-like feel, it wraps around the foot and follows each motion while running.
  • The midsole is made of Boost™ foam which aims to deliver the highest level of energy return and shock absorption, thus resulting in a more consistent run. Partnered with Continental™ rubber and Stretchweb technology, the outsole promises an energized ride that stands up against wear and tear.

The minimalist structure of the Ultraboost Laceless gives the foot a comfortable fit in a shoe that is true to size. Runners with a wide-volume foot might want to go half a size up to get an accommodating fit that is not too restricting. The shoe comes with a width of D – Medium for men.

The Continental™ rubber outsole aims to provide traction in both wet and dry conditions. Following the concept of automotive technology, the outsole is like a tire rubber that possesses more durability against natural wear-and-tear.

With the Stretchweb rubber on the outermost part, the impact of the foot strike is reduced, thus lowering damage and increasing performance. It also aims to handle various road surfaces that a runner may come across.

In the midfoot area lies the Torsion® system that functions as a platform to help prevent improper arch flexion, therefore resulting in a more stable ride. The purpose of the Torsion® system is to provide protection and control during strides and movements for a smooth heel-to-toe transition.

The laceless version of the Ultraoost makes use of the Boost™ technology, which Adidas touts as the most responsive cushioning unit in the market. It works on the notion that energy given will also result in energy received.

The Boost™ cushioning system is made from the amalgamation of TPU capsules. This design enables the midsole to absorb energy and impact differently than standard EVA foams. The responsiveness of boost™ is comparable to a bouncing effect.

A sock liner is included to provide additional cushioning to the foot; it can be removed to allow the use of custom inserts.

Because the shoe does not have laces, the Primeknit upper works double-duty in providing comfort and support to the foot. Primeknit uses the concept of digital knitting to produce an exact level of flexibility and support, allowing the upper to wrap the foot seamlessly without restraining it.

There are several rows of ridges that are stiff and textured on the midfoot area where the shoelaces would be if there were any. The ridges act similarly to a rib cage: they protect the foot.

Instead of a tongue, there is a single-piece pull tab and heel collar that allows the foot to get the shoe on and off with minimal effort. It is made from a fabric material that is slightly padded to prevent abrasions and injuries.

The FITCOUNTER heel counter secures the foot to maintain a natural fit without causing too much pressure to specific areas like the Achilles.


Jens Jakob Andersen

Jens Jakob is a fan of short distances with a 5K PR at 15:58 minutes. Based on 35 million race results, he's among the fastest 0.2% runners. Jens Jakob previously owned a running store, when he was also a competitive runner. His work is regularly featured in The New York Times, Washington Post, BBC and the likes as well as peer-reviewed journals. Finally, he has been a guest on +30 podcasts on running.