adidas Men's Ultraboost 21 Running Shoe

4.6 out of 5 stars 3,409 ratings

Price: $204.99 Free Returns on some sizes and colors

Size Chart
US Regular
Brand SizeEU SizeUK SizeHeel to toe (in)
4363.58.7
4.536.748.9
537.34.59
5.53859.2
638.75.59.4
6.539.369.5
7406.59.7
7.540.779.8
841.37.510
8.542810.2
942.78.510.4
9.543.3910.5
10449.510.7
10.544.71010.9
1145.310.511
11.5461111.2
1246.711.511.3
12.547.31211.5
134812.511.7
13.548.71311.9
1449.313.512
14.5501412.2
1550.714.512.4
1651.31512.7
1752.71613
1853.31713.3
1954.71813.7
2055.71914

Product details

Fabric type
100% Synthetic
Sole material
Rubber
Outer material
Canvas
Inner material
Canvas

About this item

  • Material: Synthetic
  • Internal Material: Synthetic
  • Altezza Tallone: 30.5 mm
  • Differenziale Tallone-Punta: 30.5-20.5 mm
  • Running Shoe Category: A3 - Maximum Cushioning
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Product details

  • Package Dimensions ‏ : ‎ 12.17 x 8.35 x 5.08 inches; 1.87 Pounds
  • Item model number ‏ : ‎ FY0377
  • Department ‏ : ‎ mens
  • Date First Available ‏ : ‎ December 7, 2020
  • Manufacturer ‏ : ‎ adidas
  • ASIN ‏ : ‎ B08PQLN351
  • Customer Reviews:
    4.6 out of 5 stars 3,409 ratings

Product Description

Get ready for a confident run. These men's adidas Ultraboost shoes raise the bar for comfort and responsiveness. The Linear Energy Push system increases forefoot and midfoot stiffness for an extra push of energy in each step. The outsole is flexible and grippy, giving you all the traction you need.

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Customer reviews

4.6 out of 5 stars
3,409 global ratings

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Customers say

Customers find these running shoes comfortable, with one describing them as feeling like walking on a cloud, and appreciate their build quality and value for money. They work well for both running and walking, with one customer noting they can walk 7 miles daily without issues. The fit and appearance receive mixed feedback - while some love the looks and perfect color match, others find them too small. The sturdiness is a concern, with reports of the sole falling apart and peeling within days of light use.

AI-generated from the text of customer reviews

95 customers mention "Comfort"83 positive12 negative

Customers find these running shoes comfortable, describing them as feeling like walking on a cloud and providing great cushioning.

"...rear of the shoe looks a bit ugly to me, but it's worth it for the ultra comfort, and it helps to wear long pants and cover the rear of them a..." Read more

"They are very comfortable for walking and exercising, their color makes them very exclusive and they look great with many outfits." Read more

"...Nice support and great cushion with each step. It's not too soft, like NMDs, and not too rigid, like cheaper shoes...." Read more

"This shoe is so comfortable and fits true to size." Read more

91 customers mention "Build quality"84 positive7 negative

Customers praise the build quality of these running shoes, describing them as fantastic and solid, with one customer noting their excellent cushion bottoms.

"Good quality. Reasonable price." Read more

"...The durability is astounding, especially when combined with a bit of Gorilla Glue for the non-visible cracks on the underside...." Read more

"have a unique style, continental sole and boost technology coupled with the parley initiative to include recycled materials from plastics and waste..." Read more

"Style works great since I use them at work. Durable in the Fresno heat. Grip is good since it uses continental material." Read more

17 customers mention "Value for money"13 positive4 negative

Customers find these running shoes offer good value for money.

"Good quality. Reasonable price." Read more

"Good product" Read more

"Very nice ,comfortable good price ..I liked it" Read more

"...The price was great. I paid quite a bit less than the $180 that Adidas charges & the shoes are authentic !" Read more

14 customers mention "Walking ability"10 positive4 negative

Customers find these shoes suitable for various activities, with one mentioning they can walk 7 miles daily without issues, while another notes they are great for both gym and outdoor use.

"...ugly to me, but it's worth it for the ultra comfort, and it helps to wear long pants and cover the rear of them a bit...." Read more

"...These are all around great daily wear and exercise wear." Read more

"Terrible for running, I’ve never had to by wide shoes and these rub your pinky toe to the point of ripping your skin off...." Read more

"These are good running & workout shoes. I have been using Adidas shoes for work out and running and walking for quite a while now...." Read more

12 customers mention "Functionality"12 positive0 negative

Customers find these running shoes work well, with one customer noting they have no issues whatsoever.

"Style works great since I use them at work. Durable in the Fresno heat. Grip is good since it uses continental material." Read more

"...After one years use it is still very comfortable and useful. A sturdy product which eases the stain on knees...." Read more

"He runs track and they work well, no feet or ankle pain" Read more

"The sneakers are great, comfortable, endurance etc but they looked like they been worn already for a good amour of time. They do not look brand new...." Read more

46 customers mention "Fit"26 positive20 negative

Customers have mixed opinions about the shoes' fit, with some finding them amazing while others report they are too tight and too small.

"This shoe is so comfortable and fits true to size." Read more

"...10.5US but it was better for me to order 11US as they are a very snug fit." Read more

"...I’m a 14 wide and they feet true to size" Read more

"...It fits perfectly as per the size discription. Recommended After one years use it is still very comfortable and useful...." Read more

23 customers mention "Look"16 positive7 negative

Customers have mixed opinions about the appearance of these running shoes, with some loving the looks and perfect color match, while others are not happy with the design and color choices.

"...are very comfortable for walking and exercising, their color makes them very exclusive and they look great with many outfits." Read more

"Very comfortable sneakers, stick to your feet. hyper light. beautiful . you can buy it and you will like it. if you wear 11. you can buy 11…...." Read more

"...put off by the styling at first, the bottom of the rear of the shoe looks a bit ugly to me, but it's worth it for the ultra comfort, and it helps to..." Read more

"These shoes look really cool and are really comfortable for walking around, but the added cushion that they added on the heel make them a little..." Read more

11 customers mention "Sturdiness"0 positive11 negative

Customers report issues with the shoes' durability, noting that the soles fall apart and peel within days of light use.

"...My right shoe just has a defect that digs in under my ankle and breaks the skin. The heel is wide and will catch on to things." Read more

"...However, only 5 or so days later, the sole started peeling! I have no idea what could have caused it aside from faulty adhesive or something...." Read more

"...These are generally ok comfort but not for long periods. One of my favs though on style." Read more

"I had these for two weeks and they have ripped. Can a new pair be sent ? Please advise - see photos." Read more

HAIDER
5 out of 5 stars
HAIDER
The shoes are excellent, cohesive and flexible. I recommend them, but I made a mistake and took a lower size in a penny. Another thing I got the box torn and I was in the shipment.
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Top reviews from the United States

  • Reviewed in the United States on March 15, 2025
    Size: 9.5Color: Legend Ink/Crystal White/Acid YellowVerified Purchase
    Good quality. Reasonable price.
  • Reviewed in the United States on March 16, 2022
    Size: 11.5Color: Black/Black/GreyVerified Purchase
    Perhaps not the best shoe ever made, but it must be in the running, certainly the best shoe I've ever worn.
    Feels like walking on a cloud, and the fact that the Parley version is made from Ocean Plastic is a very reassuring bonus.
    I was put off by the styling at first, the bottom of the rear of the shoe looks a bit ugly to me, but it's worth it for the ultra comfort, and it helps to wear long pants and cover the rear of them a bit.

    My strongest point -- This is my second pair of Adidas Ultraboosts, and I still have the first pair from 2015. At the time of this review, it's mid-March 2022, and I still wear that first pair every. single. day.
    Semi-relevant to note that I do about a hundred flights of stairs per day for work, swapping between the two pairs mentioned. The durability is astounding, especially when combined with a bit of Gorilla Glue for the non-visible cracks on the underside.
    I hope to purchase a third pair soon, maybe a different color this time.
    Can't possibly recommend any product more highly.
    You'll find that it's worth it to spend a bit more money on shoes.
    6 people found this helpful
    Report
  • Reviewed in the United States on November 21, 2024
    Size: 10.5Color: Orbit Green/Black/Acid YellowVerified Purchase
    It has stretchy material that allows it to stick to your foot while still being able to wake up your toes freely.
  • Reviewed in the United States on January 8, 2025
    Size: 12Color: Core Black/Beige Tone/Signal GreenVerified Purchase
    They are very comfortable for walking and exercising, their color makes them very exclusive and they look great with many outfits.
  • Reviewed in the United States on January 28, 2024
    Size: 9.5Color: Cloud White/Gold Metallic/Team ColleVerified Purchase
    Totally satisfied with the shoes and the seller. Arrived on time and unlike other sellers charging less my order was processed right away and shipped in a timely manner. Kudos to SCK Shoes!! Can’t find these shoes anywhere, even in Seattle. Was a gift for my daughter who is a U-Dub grad and she said it’s been sold out in Washington forever. Very pleased with this purchase.
  • Reviewed in the United States on September 6, 2024
    Excelente gracias buena calidad
    Report
  • Reviewed in the United States on June 19, 2024
    Size: 10Color: Black/Black/BlackVerified Purchase
    This shoe is so comfortable and fits true to size.
  • Reviewed in the United States on April 24, 2024
    Size: 11Color: Black/Black/GreyVerified Purchase
    Style works great since I use them at work. Durable in the Fresno heat. Grip is good since it uses continental material.

Top reviews from other countries

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  • محمود الوابصي
    5.0 out of 5 stars مريحة جداووعملية
    Reviewed in Saudi Arabia on October 26, 2023
    Size: 7Color: White/Black/Solar YellowVerified Purchase
    مريحة جدا ولكن تحتاج التأكد من مقاس رجليك
    Report
  • Ivegama
    5.0 out of 5 stars Buenas zapatillas neutras para running aficionado.
    Reviewed in Spain on August 12, 2022
    Buena opción para corredor aficionado. Zapatilla neutra con buena amortiguación. Muy cómodas. Repetiré.
  • Fracel
    5.0 out of 5 stars cubre todas mis necesidades
    Reviewed in Spain on February 22, 2022
    Size: 9.5Color: Core Black Core Black GreyVerified Purchase
    Peso > 100Kg. Después de probar diferentes zapatillas con malos resultados, me he topado con la Ultraboost, no soy un experto, pero me han cambiado la vida deportiva. Ni dolores ni cansancio en las piernas. He pedido un par más para tenerlas de repuesto.
  • Lucas Amaral
    5.0 out of 5 stars Exceptional Running Shoe
    Reviewed in the United Kingdom on February 27, 2022
    Size: 14Color: Core Black Core Black GreyVerified Purchase
    Top-notch quality. Well constructed and comfortable, but runs a little bit small, so order a size or half size up. Other than that nothing to complain about.
  • Maik
    5.0 out of 5 stars Schwer, aber gut
    Reviewed in Germany on September 16, 2021
    Size: 10Color: Carbon Cblack SolredVerified Purchase
    Der Schuh wiegt in der Größe 44 2/3 satte 388 Gramm. Wenn man bedenkt, dass ich vor wenigen Tagen einen 40-Euro-Schuh zurückgeschickt habe, weil er 451 Gramm wog und damit als Laufschuh für mich zu schwer erschien, ist das Gewicht dieses Schuhs für diesen Preis schon recht grenzwertig. Aber verrückterweise brauche ich bei diesem Schuh die 44 2/3, obwohl ich normal die 43 habe. Selbst eine 44 musste ich wieder zurückschicken, weil sie zu eng war. Man muss probieren, bis man die richtige Größe für sich gefunden hat. Bei mir ist das fast zwei Nummern größer.

    Grundsätzlich liebe ich diese Schuhe mit der sockenartigen Fernsenkappe. Man könnte glatt auf die Schnürsenkel verzichten. Er läuft sich überaus bequem und hat keine überragende, aber akzeptable Dämpfung. Da hab ich 60-Euro-Schuhe, die weicher dämpfen. Der "Boost" - und dann auch noch der "ULTRAboost" - in diesem Schuh bleibt mir verborgen. Offen gesagt: Wenn dieser Schuh eines NICHT hat, dann ist es irgend eine Form von Boost. Allerdings gehöre ich zur Kategorie der "schweren Läufer", und da soll der Ultraboost angeblich zu den geeigneteren gehören.

    Der große Vorteil dieses Schuhs liegt in seiner Stabilität. Das heißt, in keinem anderen meiner Laufschuhe habe ich das Gefühl, so auf Schienen zu laufen wie in diesem hier. Der kippelt kein bisschen nach rechts oder links. Der umschließt den Fuß und hält ihn beim Aufsetzen absolut waagerecht. Das liegt vermutlich an dem Kunststoffrahmen, der in die Sohle über ihren gesamten Umfang eingelassen ist, und an der etwas hart ausgelegten Dämpfung. Allerdings ist der Schuh seeehr warm. Bei 14 Grad Außentemperatur hab ich ziemlich geschwitzt. Ich kann mir nicht vorstellen, den bei 25 Grad zu tragen, da verflüssigt sich ja der Fuß. Scheint ein guter Winterschuh zu sein.

    Aber das Laufgefühl ist Spitze. Und allein schon, diesen Schuh anzusehen, ist ein Genuss. Darum behalte ich ihn - trotz seines immensen Gewichts. In meiner Kollektion ist das der beste Stabillaufschuh, auch wenn er als Neutralschuh verkauft wird. Wer speziell nach solchen Schuhen sucht und ca. 130 Euro ausgeben will, dem würde ich die hier ganz klar empfehlen.
    Customer image
    Maik
    5.0 out of 5 stars
    Schwer, aber gut

    Reviewed in Germany on September 16, 2021
    Der Schuh wiegt in der Größe 44 2/3 satte 388 Gramm. Wenn man bedenkt, dass ich vor wenigen Tagen einen 40-Euro-Schuh zurückgeschickt habe, weil er 451 Gramm wog und damit als Laufschuh für mich zu schwer erschien, ist das Gewicht dieses Schuhs für diesen Preis schon recht grenzwertig. Aber verrückterweise brauche ich bei diesem Schuh die 44 2/3, obwohl ich normal die 43 habe. Selbst eine 44 musste ich wieder zurückschicken, weil sie zu eng war. Man muss probieren, bis man die richtige Größe für sich gefunden hat. Bei mir ist das fast zwei Nummern größer.

    Grundsätzlich liebe ich diese Schuhe mit der sockenartigen Fernsenkappe. Man könnte glatt auf die Schnürsenkel verzichten. Er läuft sich überaus bequem und hat keine überragende, aber akzeptable Dämpfung. Da hab ich 60-Euro-Schuhe, die weicher dämpfen. Der "Boost" - und dann auch noch der "ULTRAboost" - in diesem Schuh bleibt mir verborgen. Offen gesagt: Wenn dieser Schuh eines NICHT hat, dann ist es irgend eine Form von Boost. Allerdings gehöre ich zur Kategorie der "schweren Läufer", und da soll der Ultraboost angeblich zu den geeigneteren gehören.

    Der große Vorteil dieses Schuhs liegt in seiner Stabilität. Das heißt, in keinem anderen meiner Laufschuhe habe ich das Gefühl, so auf Schienen zu laufen wie in diesem hier. Der kippelt kein bisschen nach rechts oder links. Der umschließt den Fuß und hält ihn beim Aufsetzen absolut waagerecht. Das liegt vermutlich an dem Kunststoffrahmen, der in die Sohle über ihren gesamten Umfang eingelassen ist, und an der etwas hart ausgelegten Dämpfung. Allerdings ist der Schuh seeehr warm. Bei 14 Grad Außentemperatur hab ich ziemlich geschwitzt. Ich kann mir nicht vorstellen, den bei 25 Grad zu tragen, da verflüssigt sich ja der Fuß. Scheint ein guter Winterschuh zu sein.

    Aber das Laufgefühl ist Spitze. Und allein schon, diesen Schuh anzusehen, ist ein Genuss. Darum behalte ich ihn - trotz seines immensen Gewichts. In meiner Kollektion ist das der beste Stabillaufschuh, auch wenn er als Neutralschuh verkauft wird. Wer speziell nach solchen Schuhen sucht und ca. 130 Euro ausgeben will, dem würde ich die hier ganz klar empfehlen.
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