adidas UltraBOOST 21

Name: adidas UltraBOOST 21
Brand: adidas

Daily trainer · Neutral · Road · 12.0 oz (men's)

Discontinued — we no longer see this shoe in stock. The adidas UltraBOOST 22 replaced it

How it ranks

The adidas UltraBOOST 21’s rating is an early estimate. We’ve collected 4 runner reviews so far, with product line history and external ratings also informing the score.

Good

Overall

Good 82

Durability

Very good 92

Cushioning

Very good 91

Comfort

Good 89

Appearance

Good 86

Value

Decent 71

Confidence

How settled the rating is against every other rated shoe. A shoe can rate high on confidence with relatively few reviews of its own when its product line has a long record and external ratings from retailer sites agree. Confidence is low when we have few ratings or when runners disagree.

See the product line's history

Confidence

82 Moderate

Moderate 82

External retailer ratings

We break apart ratings from mass-market retailers and specialty running shops since they serve different audiences.

The middle of the bar marks the typical shoe at each type of retailer. The dot shows where this shoe ranks in comparison.

Based on

The bars show roughly how much each source contributes to this shoe’s rating. Their influence depends on how many reviews we’ve collected, how many earlier versions are in the product line, and the external ratings available.

Product line track record
Our ratings
External ratings

Prefer this shoe over another

0% 0/3

Where to buy

No offers available

Affiliate links included. They never affect our ratings.

Prices updated daily. Last checked Oct 22.

Pros

One reviewer finds it brings back structure compared with the Ultraboost 19 and 20.
Its four reviewers rate both comfort and cushioning 4.5 out of 5.

Cons

It lists at $190, above the $150 median for daily trainers for sale, and value is among its lowest-rated dimensions at 3.8 out of 5.
At 12.0 oz it is much heavier than the 8.9 oz median for daily trainers for sale.
The Ultraboost 19 scores 91 on fourteen reviews and the 20 89 on eight, both above this version.