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ASICS Gel-Kayano 12.1 Kith Quartz

Name: ASICS Gel-Kayano 12.1 Kith Quartz
Brand: ASICS
SKU: 1203B144-101
Availability: InStock

ASICS · Style 1203B144-101 · Released 2026-01-12

from $323.80

Select a size:

Size chart — ASICS

Full ASICS size guide

Use the chart below to convert between US, UK, EU and JP sizes.

Men

US	UK	EU	JP (cm)
4	3	36	22.5
4.5	3.5	37	23
5	4	37.5	23.5
5.5	4.5	38	24
6	5	39	24.5
6.5	5.5	39.5	25
7	6	40	25.25
7.5	6.5	40.5	25.5
8	7	41.5	26
8.5	7.5	42	26.5
9	8	42.5	27
9.5	8.5	43.5	27.5
10	9	44	28
10.5	9.5	44.5	28.25
11	10	45	28.5
11.5	10.5	46	29
12	11	46.5	29.5
12.5	11.5	47	30
13	12	48	30.5
13.5	12.5	48.5	30.75
14	13	49	31
14.5	13.5	49.5	31.5
15	14	50.5	32

Women

US	UK	EU	JP (cm)
5	3	35.5	22.5
5.5	3.5	36	22.75
6	4	37	23
6.5	4.5	37.5	23.5
7	5	38	24
7.5	5.5	39	24.5
8	6	39.5	25
8.5	6.5	40	25.5
9	7	40.5	25.75
9.5	7.5	41.5	26
10	8	42	26.5
10.5	8.5	42.5	27
11	9	43.5	27.5
11.5	9.5	44	28
12	10	44.5	28.5
12.5	10.5	45	28.75
13	11	46	29
13.5	11.5	46.5	29.5
14	12	47	30

Kids

US	UK	EU	JP (cm)
K4	K3	19.5	11.5
K5	K4	21	13
K6	K5	22.5	14
K7	K6	23.5	15
K8	K7	25	15.5
K9	K8	26	16
K10	K9	27	17
K10.5	K9.5	28	17.25
K11	K10	28.5	17.5
K11.5	K10.5	29.5	18
K12	K11	30	18.5
K12.5	K11.5	30.5	19
K13	K12	31.5	19.5
K13.5	K12.5	32	19.75
1	K13	32.5	20
1.5	K13.5	33	20.5
2	1	33.5	21
2.5	1.5	34.5	21.5
3	2	35	22
3.5	2.5	35.5	22.25
4	3	36	22.5
4.5	3.5	37	23
5	4	37.5	23.5
5.5	4.5	38	24
6	5	39	24.5
6.5	5.5	39.5	25
7	6	40	25.5

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14-day returns & equal-value exchanges — policy

Size, price & UPC details

Size	Price	UPC	Delivery
US M 5 / W 6.5	—	199023182821	Out of stock
US M 5.5 / W 7	—	199023182722	Out of stock
US M 6 / W 7.5	—	199023182692	Out of stock
US M 7 / W 8.5	—	199023182838	Out of stock
US M 7.5 / W 9	—	199023182746	Out of stock
US M 8 / W 9.5	—	199023182869	Out of stock
US M 8.5 / W 10	$362.30	199023182777	3-4 business days
US M 9 / W 10.5	—	199023182739	Out of stock
US M 9.5 / W 11	—	199023182685	Out of stock
US M 10 / W 11.5	—	199023182852	Out of stock
US M 10.5 / W 12	$342.50	199023182708	3-4 business days
US M 11 / W 12.5	$373.30	199023182791	3-4 business days
US M 11.5 / W 13	$323.80	199023182760	3-4 business days
US M 12 / W 13.5	—	199023182845	Out of stock
US M 13 / W 14.5	—	199023182753	Out of stock

About the ASICS Gel-Kayano 12.1 Kith Quartz

The ASICS Gel Kayano 121 Kith Quartz brings a refined and curated approach to performance running design through its collaboration with Kith. The quartz color palette gives the shoe a soft and tonal look, creating a calm and cohesive aesthetic that feels elevated compared to standard releases. It blends ASICS technical heritage with Kith’s clean and controlled design language. What makes this pair stand out is its balance between performance roots and lifestyle appeal. The silhouette remains grounded in comfort and structure, while the color execution gives it a more fashion forward edge. It is a collaboration that feels intentional and polished from every angle. The ASICS Gel Kayano 121 Kith Quartz was released on January 12, 2026 with a retail price of $195.