Size guides On

How to choose the right size?

Don’t bother measuring your insole you’ll never get it exactly right. Instead, check the measurements in cm or CHN on any of your sneakers. Use that info to find the corresponding US size in the size guide. For example, a 25 cm insole length corresponds to a US 7 in Vans. Keep in mind, sizes may vary slightly between brands due to different measuring methods.

Size guides for all brands.

Looking for a different brand?

Find it here.

Unsure about the size? We’d be happy to help!

+44 203 807 1459

[email protected]

Not the right fit? You have 30 days to return your shoes.

If you choose the wrong size

We’d be happy to exchange it for you.

Which size guide are you looking for?

On footwear - men

EURUSUKCM*
4076.525
40.57.5725.5
4187.526
428.5826.5
42.598.527
439.5927.5
44109.528
44.510.51028.5
451110.529
4611.51129.5
471211.530
47.512.51230.5
481312.531
49141331.5

On Running tops - men

SizeChest (cm)Waist (cm)Hips (cm)
XS907589
S91.5–94.578.5-81.590.5-93.5
M96.5-99.583.5-86.595.5-98.5
L101.5-104.588.5-91.5100.5-103.5
XL106.5-109.593.5-96.5105.5-108.5
XXL111.5-114.598.5-101.5110.5-113.5

On socks - men

EURUSUKSize
40-417-86.5-7.5S
42-438.5-9.58-9M
44-4510-119.5-10.5L
46-4711.5-12.511-11.5XL
48-4913-1412.5-13.5XXL

On Running bottoms - men

SizeWaist (cm)Hips (cm)
XS7589
S76-8290-95
M83-8996-101
L90-96102-107
XL97-105108-113
XXL106-114114-119

On footwear - women

EURUSUKCM*
365322
36.55.53.522.5
376423
37.56.54.523.5
387524
38.57.55.524.5
398625
408.56.525.5
40.59726
419.57.526.5
4210827
42.510.58.527.5
4311928

On Running tops - women

SizeChest (cm)Waist (cm)Hips (cm)
XS82.5-85.564.5-67.591.5-94.5
S87.5-90.569.5-72.596.5-99.5
M92.5-95.574.5-77.5101.5-104.5
L97-10179-83106-110
XL102-10685-89111-115
XXL110-111896-105116-122

On socks - women

EURUSUKSize
36-375-63-4XS
38-397-85-6S
40-418.5-9.57.5-7.5M
42-4310-118-9L

On bottoms - women

SizeWaist (cm)Hips (cm)
XS64.5-67.591.5-94.5
S69.5-72.596.5-99.5
M74.5-77.5101.5-104.5
L79-83106-110
XL85-89111-115

On socks - unisex

EURUSSize
35-374-6XS
38-407-8.5S
40-439M
43-459.5-11L
46-4911.5-14XL

On socks - unisex

EURUKSize
35-38.53-5.5XS
39-42.56-8.5S
43-469-10.5M
47-4911-13L

On

They look a little like sneakers from the future. And maybe they are. He revolutionized running shoes, which Forbesnoticed and called the biggest innovation in this segment. We're talking about the unique patented CloudTec® sole technology , which perfectly cushions the footfall and adapts to your running style. The brand is the brainchild of former professional athlete Olivier Bernhard, who wanted to create the perfect shoe for maximum performance and unparalleled comfort. He joined forces with Swiss engineers and the result is a completely unique shoe that is loved not only by runners, but also by world-class athletes and lovers of innovative design. In 2019, top tennis player and Olympic champion Roger Federer became co-owner of the brand and helped develop a premium line of sports and lifestyle footwear for On. On also focuses on sustainability. It makes extensive use of recycled materials, minimizes waste and delivers functional innovations with a planet- and resource-friendly approach. Of course, without any compromise on the legendary Swiss quality and precision. The On running shoes will support your athletic performance to the maximum. Every step in them will be light, natural and addictive. Whether you're running around town, in the mountains, or just looking for a comfortable sneaker with an unconventional design for everyday wear