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Order online, collect instore
Bespoke bike fitting
Fast shipping to the UK
With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.
Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!
With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.
So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.
Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.
The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.
Season:2024
Brand:On Running
Code:3WE10401947 W
Key features
Maximum energy return
Less ground contact. More air time. Why? A propulsive running sensation, ideal for people who run in a seated position. It's an ultra-comfortable, forward-rolling ride with a flexible Speedboard® that delivers an energy return you can feel.
Data-driven design
After analyzing data from over 1.2 million foot scans, usually, the design process starts with a men's prototype. But for the Cloudspark, we flipped the switch and started with a women's prototype. From this, we created a shape and fit tailored to the needs of more runners.
Light and breathable
The heel, tongue and inner are made using ultralight materials. This ensures maximum breathability and comfort while creating a secure running sensation. The engineered mesh upper is made from 100% recycled polyester that molds to the foot, while allowing your toes to move.
On models are straight forward. In most cases, you just take the same size as your current shoes.
Should you wish to compare with another running shoe brand, please use below guide to clarify your size.
EUR
36
36.5
37
37.5
38
38.5
39
40
40.5
41
42
42.5
43
US
5
5.5
6
6.5
7
7.5
8
8.5
9
9.5
10
10.5
11
UK
3
3.5
4
4.5
JPN(CM)
22
22.5
23
23.5
24
24.5
25
25.5
26
26.5
27
27.5
28
Compare On sizes with other shoes
On size
Adidas
Go the same
ASICS
Go half a size smaller
Brooks
HOKA ONE
Nike
Nike Flyknit
Mizuno
Saucony
Size Guide - Women's Socks
Size
EU
XS
36-37
3-4
5-6
S
38-39
7-8
M
40-41
6.5-7.5
8.5-9.5
L
42-43
8-9
10-11