We spent 10.1 hours reading reviews from experts and users. In summary, this is what runners think:

5 reasons to buy

  • A lot of people welcomed the slip-on design of the Adidas Speedfactory AM4SH, stating that it was easy to put on the shoe.
  • The design of this running shoe was lauded; runners received many compliments when wearing it.
  • The patch-reinforced upper kept the foot secure and in place, according to several testers.
  • The traction capacity of the outsole was well-liked; the rubber apparently held on to dry and wet surfaces with ease.
  • Many runners were happy with the comfortable Boost midsole.

2 reasons not to buy

  • Several consumers felt that the width was a bit narrow.
  • A few people complained that the colors and portions of the upper wore off after only several uses.

Bottom line

A lot of people were happy with the Adidas Speedfactory AM4SH and what it had to offer. The neutral running shoe has a pleasant design, responsive midsole foam, easy-to-wear construction, and grippy external pad which were highlighted as elements that contributed to a well-rounded performance on the roads. Some people had complaints about the durability and the fit profile, but these complaints weren’t deal-breaking to most.


Terrain: Road
Arch support: Neutral
Pronation: Neutral Pronation
Arch type: High arch
Release date: Jul 2018
Brand: Adidas
Width: Men: Normal | Women: Normal
Price: $200
Colorways: Green
Small True to size Large
See more facts

  • The Adidas Speedfactory AM4SH is a running shoe that’s designed for those who have neutral pronation. It has street-ready aesthetics that may cater to both athletes and casual shoe enthusiasts. The frame and look of this city runner were co-created with athletes from Shanghai, China. The fully automated Speedfactory shoemaking facility is responsible for building the actual shoe.
  • Underfoot cushioning is the responsibility of the Boost midsole. This full-length foam works with a floating torsion bar in the midfoot to keep the foot supported at all times. Traction and abrasion protection fall upon the rubber outsole.

The Adidas Speedfactory AM4SH was crafted to be true to size. Runners can get a pair using their regular sizing expectations. When it comes to width, the available option is D – Medium. The silhouette of this product was framed after the foot-dimensions of men.

The outsole unit of the Adidas Speedfactory AM4SH features a layer of rubber, the task of which is to protect against abrasion and to provide surface traction. It has traction nodes and shallow grooves that encourage flexibility and extra grip.

Just like the popular Adidas Ultra Boost Uncaged, the Speedfactory AM4SH uses Boost technology which is a cushioning platform that’s made from the amalgamation of many thermoplastic polyurethane pellets. It aims to provide responsive underfoot support and shock attenuation. Moreover, it has a lightweight and flexible configuration.

A SPEEDFACTORY Floating Torsion Bar is placed in the midfoot section. This thermoplastic feature has the job of supporting the tendons and muscles of the underfoot, rescuing them from strain and fatigue during the run.

An insole is added on top of the primary foam. Its purpose is to add a bit more to the cushioning capacity of the platform. It can be removed or replaced with a custom insert of the wearer’s choosing.

The upper unit of the Adidas Speedfactory AM4SH makes use of a knitted textile. The cloth-like quality of this material evokes a sock-like coverage. It is breathable and form-fitting.

Slip-On design allows the runner to wear and remove the shoe quickly. The soft interior lining staves of skin irritation while maintaining in-shoe ventilation.

Thin and light patches are fuse-bonded onto the façade. These extra layers are meant to help the rest of the upper when it comes to hugging the foot and locking it in place. Some of them act as reinforcement to the eyelets of the lacing system.

An NFC chip on the instep allows the runner to track performance via the Adidas app.


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.