Adidas UltraBoost 20 Size Chart and Fitting

This post was last updated on May 18th, 2021 at 10:44 pm

Adidas Ultraboost : a game-changer

In 2015, the first Ultraboost bridged the gap between form and function with a silhouette that caught the attention of world-class runners, force-of-nature celebs, and sneakerheads alike.

The newest Ultraboost 20 is an evolution of the Ultraboost 19 as the Boost midsole, fine-tuned torsion spring, and coreless 3D heel frame remain consistent from the previous year’s model. The main update on the model is in the upper with the addition of precisely placed Tailored Fiber Placement (TFP) stitching to limit stretch in the PrimeKnit upper in key areas where support is needed. 



Buy your Adidas UltraBoost 20 runners here

Men’s: Adidas Ultraboost 20 Size Chart

Find your correct size of the Adidas Ultraboost 20 and convert it in UK, US, European / EU, and Japanese sizes.

Men
US Size
Heel – Toe
in Inches
Heel – Toe
in cm
UK
Size
EU
Size
Japan
Size
48.7″22.1 cm3.536220
4.58.9″22.5 cm436 2/3 *225
59.0″22.9 cm4.537 1/3 *230
5.59.2″23.3 cm538235
69.4″23.8 cm5.538 2/3 *240
6.59.5″24.2 cm639 1/3 *245
79.7″24.6 cm6.540250
7.59.8″25.0 cm740 2/3 *255
810.0″25.5 cm7.541 1/3 *260
8.510.2″25.9 cm842265
910.4″26.3 cm8.542 2/3 *270
9.510.5″26.7 cm943 1/3 *275
1010.7″27.1 cm9.544280
10.510.9″27.6 cm1044 2/3 *285
1111.0″28.0 cm10.545 1/3 *290
11.511.2″28.4 cm1146295
1211.3″28.8 cm11.546 2/3 *300
12.511.5″29.3 cm1247 1/3 *305
1311.7″29.7 cm12.548310
13.511.9″30.1 cm1348 2/3 *315
1412.0″30.5 cm13.549 1/3 *320
14.512.2″31.0 cm1450325
1512.4″31.4 cm14.550 2/3 *
1612.7″31.8 cm1551 1/3 *
1713.0″32.6 cm1552 2/3 *
1813.3″33.5 cm1753 1/3 *
1913.7″34.3 cm1854 2/3 *
2014.0″35.2 cm1955 2/3 *
EU Sizes with a * are typical Adidas sizes. When in doubt, measure your feet: the result will show the correct EU size conversion.

Buy your Adidas UltraBoost 20 runners here

Women’s: Adidas Ultraboost 20 Size Chart

Find your correct size of the Adidas Ultraboost 20 and convert it in UK, US, European / EU, and Japanese sizes.

Women
US Size
Heel – Toe
in Inches
Heel – Toe
in cm
UK
Size
EU
Size
Japan
Sizes
58.7″22.1 cm3.536220
5.58.9″22.5 cm436 2/3 *225
69.0″22.9 cm4.537 1/3 *230
6.59.2″23.3 cm538235
79.4″23.8 cm5.538 2/3 *240
7.59.5″24.2 cm639 1/3 *245
89.7″24.6 cm6.540250
8.59.8″25.0 cm740 2/3 *255
910.0″25.5 cm7.541 1/3 *260
9.510.2″25.9 cm842265
1010.4″26.3 cm8.542 2/3 *270
10.510.5″26.7 cm943 1/3 *275
1110.7″27.1 cm9.544280
11.510.9″27.6 cm1044 2/3 *285
1211.0″28.0 cm10.545 1/3 *290
12.511.2″28.4 cm1146295
1311.3″28.8 cm11.546 2/3 *300
13.511.5″29.3 cm1247 1/3 *305
1411.7″29.7 cm12.548310
14.511.9″30.1 cm1348 2/3 *315
1512.0″30.5 cm13.549 1/3 *320
15.512.2″31.0 cm1450325
EU Sizes with a * are typical Adidas sizes. When in doubt, measure your feet: the result will show the correct EU size conversion.

Buy your Adidas UltraBoost 20 runners here

Measure your feet for the right size of your Ultraboost

How do the Adidas UltraBoost 20 Runners fit and how to define the perfect fitting Ultraboost Size?
10 easy steps to measure your feet correctly:

  1. Measure your feet in the afternoon.

  2. Stand When Measuring

  3. Wear socks

  4. Be precise

  5. Measure both feet

  6. Stand on your piece of paper

  7. Start drawing

  8. Measure the length of your feet

  9. Find your width fitting by drawing or with measuring tape

  10. Determine your size in the conversion charts

Adidas Shoes Size Conversion Charts with more parameters can be found here.
Find out How to measure your shoe size correctly here.

Buy your Adidas UltraBoost 20 runners here

Adidas UltraBoost 20 Shoes: Fitting Guide and Tips.

How do the Adidas UltraBoost 20 shoes fit?

It’s known that a pair of UltraBoost fits true to size. For UltraBoost 20 it’s not different. The shoes fit true to size.
The shoe features Primeknit with TFP stitching to provide an optimal balance of sock-like fit & support exactly where you need it in every stride. In addition, a new heel construction provides enhanced padding around the Achilles for improved heel fit. Combined with the iconic Boost midsole and Torsion spring from the UltraBoost 19, UltraBoost 20 will help you chase your personal best on every run.

Should you consider to size up or down with the Adidas Ultraboost 20?

The Ultrboost 20 fit true to size, only when you have wide feet, you can consider going up half a size.

Is the Adidas Ultraboost 20 a comfortable shoe?

As one of the best running shoes from Adidas, the UltraBoost 20 is extremely comfortable.

Do Adidas UltraBoost 20 runners come in Children’s sizes?

No, The Adidas UltraBoost 20 shoes come from EU size 36, UK 10, US 10.5. So, starting from 8 years old your kids can wear the Runners.

Are Adidas Ultraboost 20 Sneakers easy to clean?

Adidas is designed for the streets, so they’re likely to get dirty. On the whole, they’re super durable and low maintenance.
Carefully remove the insoles and laces from your Ultraboost 20 – insoles SHOULD NOT go into the washing machine. Put the shoes in the washing machine on the delicates cycle (cold water). The Laces can be washed using a linen bag or by hand for the best result. Use a gentle detergent and avoid bleach at all costs.
Do NOT tumble dry – air dry your Adidas Ultraboost 20. Reinsert the insole and laces and get on with your day.
Our main preference is to clean your Adidas Ultraboost 20 by hand, with a brush and a wet cloth.

Are there more models in the Adidas Boost collection?

Aside from the Adidas UltraBoost 20 the collection also comes in Adidas ZX 2K Boost, Ivy Park Ultraboost OG, and many others


Buy your Adidas UltraBoost 20 runners here

The dedicated Adidas Size Charts:

Adidas Size Charts, Adults, Brands, Fitting, Shoe Size Chart, Shoe size charts, Size Charts, Size Guide, Sneakers

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