Verdict from 1 expert and 9 user reviews

5 reasons to buy

  • Many people considered the Adidas Speedfactory AM4LA to be a suitably lightweight running shoe.
  • The color schemes that are available for this road companion were welcomed by a lot of consumers.
  • Several testers liked that they were able to use this shoe for casual purposes.
  • The midsole offered a firm yet well-cushioned ride, based on many user comments.
  • Some purchasers stated that they wore this shoe for workouts in the gym, and reported that it was efficient.

4 reasons not to buy

  • Some runners disliked the price; for them, it was a bit expensive.
  • There were complaints about the shoe being a bit narrow; the claimants would’ve appreciated a wide-width option, but such a variant is not available.
  • The Speedfactory patch on the medial midfoot side caused some discomfort, according to a few testers.
  • Some consumers felt that the cushioning system was a bit thin compared to most shoes that feature the boost™ platform.

Bottom line

The feedback for the Adidas Speedfactory AM4LA was split. While a lot of people welcomed its versatile design and lightweight configuration, others weren’t happy with the apparently thin midsole unit. Also, while it looked visually appealing, complaints about a narrow fit and an irritating overlay system arose. Overall, this neutral road shoe was highly criticized, but consumers didn’t shy away from it.

Tip: see the best running shoes.

Good to know

  • The Adidas Speedfactory AM4LA is a road shoe that’s designed for city running. It’s also configured for neutral pronators. An uncluttered façade graces this product, and it’s highlighted by a lightweight and breathable build.
  • A knitted textile serves as the upper unit, and it’s made using recycled plastic. Environmentalists may find such an arrangement to be appealing. Since this shoe was made in Germany’s SPEEDFACTORY facility, it’s adorned with a floating torsion bar, a patch-based reinforcement system on the upper, and a glue-free construction.
  • The midsole unit makes use of the boost™ foam. It carries the foot and energizes it when taking each step. A grid of rubber covers the cushioning platform, preventing it from succumbing to surface abrasion and the potentially damaging effects of continued use.

The Adidas Speedfactory AM4LA features standard sizes. It is still recommended to try out the shoe first before making a purchase; doing so would yield a more relaxed in-shoe experience. The width profile of this running shoe is D – Medium. It is only available for men.

The Adidas Speedfactory AM4LA features a rubber outsole that has a grid layout. Non-prominent traction nodes ensure surface control while shallow indentations provide flexibility.

Same as that in popular Adidas Ultra Boost, cushioning in Speedfactory AM4LA is provided by the full-length boost™ foam. This compound was born from the amalgamation of thousands of thermoplastic polyurethane pellets. Its purpose is to give a springy underfoot experience. It also attenuates impact during the landing phase of the gait cycle.

The Speedfactory floating torsion bar is a reinforcing plastic in the midfoot section. It bolsters the structure of the combined pellets, preventing it from sagging quickly. It also supports the muscles and tendons of the underfoot.

A knit-material serves as the outer section of the Adidas Speedfactory AM4LA’s upper. It’s created using a unique yarn by Parley for the Oceans. The Parley Ocean Plastic™ is an uncommon fiber that’s made from recycled materials. The final product resembles a textile’s look and texture.

The climalite fabric is used for the interior sleeve of this running shoe. It is soft, and it has moisture-wicking properties to maintain a dry environment for the foot.

The Speedfactory patch reinforcement scheme offers a lightweight wrap. Pieces of this overlay system reinforce the heel, the midfoot, and the eyelets of the lacing system.


How Adidas Speedfactory AM4LA ranks compared to all other shoes
Bottom 40% road running shoes
All road running shoes
Bottom 45% Adidas running shoes
All Adidas running shoes
Bottom 41% neutral running shoes
All neutral running shoes


The current trend of Adidas Speedfactory AM4LA.
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Jens Jakob Andersen
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.