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UB10-S GEL-KAYANO 20

As low as $340.00
In stock
Only %1 left
or 4 payments of $85.00 Learn more
STYLE #: 1203A640.300
UB10-S GEL-KAYANO 20 is rated 4.4 out of 5 by 9.
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Width: Standard - D
Size (US - Mens):
Size Guide | Width Guide
Size Guide
Width Guide

All shoe sizes listed on the website are in US sizes.

Men's/Unisex Shoe Sizes

US UK EU CM US Women
4 3 36 22.5 5.5
5 4 37.5 23.5 6.5
5.5 4.5 38 24 7
6 5 39 24.5 7.5
6.5 5.5 39.5 25 8
7 6 40 25.5 8.5
7.5 6.5 40.5 25.75 9
8 7 41.5 26 9.5
8.5 7.5 42 26.5 10
9 8 42.5 27 10.5
9.5 8.5 43.5 27.5 11
10 9 44 28 11.5
10.5 9.5 44.5 28.25 12
11 10 45 28.5 12.5
11.5 10.5 46 29 13
12 11 46.5 29.5 13.5
12.5 11.5 47 30 14
13 12 48 30.5 14.5
13.5 12.5 48.5 30.75 15
14 13 49 31 15.5
15 14 50.5 32 16.5
16 15 51.5 33 17.5

Men's Work Boot Sizes

US UK EU CM US Women
8.5 7.5 42 26 10
9 8 42.5 26.5 10.5
9.5 8.5 43.5 27 11
10 9 44 27.5 11.5
10.5 9.5 44.5 28 12
11 10 45 28.25 12.5
11.5 10.5 46 28.5 13
12 11 46.5 29 13.5
13 12 48 30 14.5
14 13 49 31 15.5

Women's Shoe Sizes

US UK EU CM US Men
5 3 35.5 22 3.5
5.5 3.5 36 22.5 4
6 4 37 23 4.5
6.5 4.5 37.5 23.5 5
7 5 38 24 5.5
7.5 5.5 39 24.5 6
8 6 39.5 25 6.5
8.5 6.5 40 25.5 7
9 7 40.5 25.75 7.5
9.5 7.5 41.5 26 8
10 8 42 26.5 8.5
10.5 8.5 42.5 27 9
11 9 43.5 27.5 9.5
11.5 9.5 44 28 10
12 10 44.5 28.5 10.5
12.5 10.5 45 28.75 11
13 11 46 29 11.5

Kid's Shoe Sizes

Pre-School (PS): Sizes K10-3 | Grade School (GS): Sizes 1-7 | Toddler (TS): Sizes K4-K9

US EU UK CM
K5 21 K4 13
K6 22.5 K5 14
K7 23.5 K6 15
K8 25 K7 15.5
K9 26 K8 16
K10 27 K9 17
K11 28.5 K10 17.5
K12 30 K11 18.5
K13 31.5 K12 19.5
1 32.5 K13 20
2 33.5 1 21
3 35 2 22
4 36 3 22.5
5 37.5 4 23.5
6 39 5 24.5
7 40 6 25.5

Unsure on size or colour?

We offer 30 day free returns for online purchases. View our Returns Policy here. To speak with an expert, visit us in store or speak to one of our online specialists.

Men/Kids   Women
  2A Narrow
Narrow B Standard
Standard D Wide
Wide 2E Extra Wide
Extra Wide 4E  

The standard (medium) width for women is B, while the standard width for men is D. Shoe boxes and labels will only identify widths other than standard. Within the shoes, wide and narrow widths are identified on the label, underneath the tongue — ie. T005N(2E).

When is additional width needed?

Visible stretching or bulging on the outsides of forefoot materials is a good indicator that additional width may be needed. These sizes are available in many of our Running and Training shoes. In some cases, men can wear women’s styles to achieve a narrow fit and women can wear men’s to get a wide. If this is needed, please use the references above to determine comparable size lengths.

Please note that the differences of width between narrow, standard, wide, and extra wide are usually only a couple millimeters and are proportional to the size of the shoe. Most additional width will be found in the forefoot.
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UB10-S GEL-KAYANO 20

As low as $340.00
or 4 payments of $85.00 Learn more
STYLE #: 1203A640.300
UB10-S GEL-KAYANO 20 is rated 4.4 out of 5 by 9.
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Product Details

Curated style by Kiko Kostadinov Studio and ASICS SportStyle development team. The UB10-S GEL-KAYANOâ„¢ 20 sneaker draws inspiration from the themes of Interlaced Assemblages, Functional Utopias, and Mino Ceramics.

Soft textures are combined with the idea of handcrafted elements found in iconic artwork. By creating matte and washed color appearances, the design team was able to enhance the heritage running shoe's archival shape and construction.

Contrasted with grid-like patterns and bold opaque colors, the Functional Utopia inspired variations apply direct correlations with nature. These glossy primary colorways are offset with metallic structures that accentuate the double-layer mesh materialization.

The designers also explored Mino ceramic influences by investigating the contemporary processes of the rust-like qualities that appear in Mino glazes. This process looks to imagery as a vessel with degraded colors that have the ability to stand the test of time.

Promotional item, some exclusions may apply. 1 unit per order.

STYLE #: 1203A640.300
Rated 3 out of 5 by Chap from Size up! They run small They appeared to be a great shoe but for the first time in more than 15 pairs of Asics in the past 7 years, these didn't fit. They're potentially a 5 star shoe, but since they don't fit like every other pair I've had, they only get 3 stars.
Date published: 2025-04-30
Rated 5 out of 5 by Ng76 from Love them I love these shoes so comfortable typical Asics!! Recommend
Date published: 2025-04-07
Rated 5 out of 5 by Chloe23 from Favorite shoe Best shoe I own right now. Fits great and I would definitely recommend it..
Date published: 2025-02-19
Rated 5 out of 5 by Ron Jeremy from The best show out there. Great shoe. Really great support and the arch feels great.
Date published: 2025-01-18
Rated 5 out of 5 by Babu from The most comfortable shoe I have is the gel kayanos I loved my gel kayano 21 and still using it I bought the 20 as a replacement and very happy with it but not sure of the sizing Will go to the ASICS shop to do a fitting as I have a permanently swollen foot I bought the 31 and was not happy with the ankle support padding which got squashed and would not bounce back. I gave it away I also tried the 14 and not happy with it either as it rubbed against my little toe Please bring back the gel kayano 21 as it’s not available to buy new
Date published: 2025-01-07
Rated 3 out of 5 by Samer from Awesome looking shoes good fabric I bought these shoes 1 week ago and they look amazing but to be honest there not completely comfortable like my olds ones I’m disappointed fist time ever I buy a pair of Asics shoes and there not comfy
Date published: 2025-01-02
Rated 5 out of 5 by Feral Twist from Extremely happy customer [This review was collected as part of a promotion.] Great quality!! Sooo comfy!!!! Nothing compares!! Delivery quick.. shoes exceeded quality needs as normal
Date published: 2024-12-12
Rated 4 out of 5 by Timotheous from Sizing is small I love the styling of this shoe and its retro aesthetic however the sizing is probably a half size smaller than newer Kayanos
Date published: 2024-12-10
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