Like all Ultraboosts that are like socks, at first they are very tight on the foot... they need time to open up and then they are magical.

Very comfortable for everyday use that I want them, light and stable on the foot, while I wear size 40 in these specific ones I got size 41.
The most comfortable shoes I have worn so far. I walk 7-8 km every day at my job and even though I have a problem with my right foot, it hasn't bothered me at all.

With the 21, the company completely changed the shoe. It remains awesome with a much larger sole and better grip.

After 8 months of owning them, I have to say that they are definitely harder than their predecessors, but they soften quite a bit over time. I use them EVERY day for demanding workouts, whether it's running on dirt or on the road, and they are really durable. They clean very easily in the washing machine and become like new. For those thinking of buying them, just choose one size larger because the mold differs quite a bit from previous models.

Very comfortable although I would say that size 21 fits better on the foot. They still easily get dirty and break if you don't take good care of them, but we can't have comfort, air on our feet and not have them break easily.. they are definitely worth their money though

They didn't last more than a year for the 180€ I bought them when they first came out, they are really bad, the Achilles heel part opened on the inside

The shoe is not suitable for long distances or speeds as it is a very heavy shoe in my opinion, as a sports equipment enthusiast I am not very satisfied because it started to break down in a very short time and I would not buy it again!

I hadn't bought running shoes for years. Former owner of Asics Nimbus 15. At first, I wanted to return it, but later it softened and suited me for what I needed it for.

The negatives:
- It ties like a sock and warms me up, also the laces need to be very loose at first.
- It is heavy for the money and for the purpose they are intended.
- It is for medium body types, weights.
- The surface you run on must be quite flat. I can feel everything underneath on the sole.
- It is for completely neutral feet.

The positives:
- It absorbs shocks and protects knees, waist to a good degree.
- It is beautiful.
- It seems to have good quality.

I will not buy shoes with this type of foam again.

For now, I am satisfied. I don't think they are worth the money, though. Normally, I wear size 42.5, but I bought size 43, so I recommend getting a slightly larger size.

Very good for everyday shoes, of course a bit expensive, but for posture and for work that requires you to be standing all the time, it is the best shoe. I have tried many but none have such a comfortable fit. The 4 stars are for their price.

I think that ADIDAS with the ULTRABOOST 21 has taken two steps back in all areas compared to the ULTRABOOST 4.0 DNA

Very comfortable and efficient shoes! Although they are a bit heavy, you don't notice it and get used to it very quickly. Even if you have them loosely laced, they hold your foot very well. They are very good for running and walking. I ran in a race (600m) and they helped me a lot. I highly recommend them.

These shoes are heavy, the foam, although it has more than previous models, is not comfortable.
What no one mentions is how much they sweat in a short period of time, resulting in smelly feet.
I do not recommend them, I regret buying them, I am looking for a replacement.
They are not worth the 180€ in any case

Unacceptable shoe.. I have been buying ultra boost since they came out, and this is the worst one that this shoe series has produced, every year worse and worse...!

Personally, due to a large blister on my foot, the shoes are very tight to the point of causing pain, even though I bought them one size larger.

I bought the ultraboost and with the first try, I realized that the shoe is stiff and hard. Absolutely no comparison to the previous models where you felt like walking on clouds. Luckily, the people at the store are professionals and gave me the opportunity to get something else.
Honestly, they are not worth their money in my opinion. Anyway, they definitely don't have the same feel as the older ones. It's not an upgrade of the ultraboost series, it's a downgrade.

No comparison to the ultra boost you knew for so many years. It's not worth the money at all. I've been buying them every year since 2013. The 2021 version was the worst thing I've ever worn

The Ultraboost 20 are much better while I have bought all the latest years, this particular one doesn't suit me at all..

Wonderful shoes, my boss gave them to me as a gift! Very comfortable shoes, like wearing the Yeezy 350!

The limited edition Ultraboost 21 Cloud White is slightly heavier than the 20s, but that doesn't bother me. While it has 6% more boost than its predecessor, I can't say that the sole is equally comfortable :( in this aspect, unfortunately, it falls short compared to the 20s. The heel in the photos may seem strange, but up close, it's not bad, and I can say that the material used is better than the 2020 version. Regarding cleaning, there are some stains on the white shoes that didn't come out as if they were soaked, but I think this is a general problem that white shoes have