2.847 reviewsCloud 5 - Hay | Frost
Size Guide
| EU | CM | UK Men | UK Women |
|---|---|---|---|
| 36 | 22 | — | 3 |
| 36.5 | 22.5 | — | 3.5 |
| 37 | 23 | — | 4 |
| 37.5 | 23.5 | — | 4.5 |
| 38 | 24 | — | 5 |
| 38.5 | 24.5 | — | 5.5 |
| 39 | 25 | — | 6 |
| 40 | 25 | 6.5 | 6.5 |
| 40.5 | 25.5 | 7 | 7 |
| 41 | 26 | 7.5 | 7.5 |
| 42 | 26.5 | 8 | 8 |
| 42.5 | 27 | 8.5 | 8.5 |
| 43 | 27.5 | 9 | 9 |
| 44 | 28 | 9.5 | 10 |
| 44.5 | 28.5 | 10 | — |
| 45 | 29 | 10.5 | — |
Based on the official On size chart (on.com).
Shipping Time
Order processing and delivery time
We typically process orders within 1–3 business days. In some cases, processing may take longer. If it takes more than 10 business days, we will notify you by email.
Estimated delivery times:
• Europe: 7–12 business days
Please note that these are estimates and may vary depending on your location. Some orders may arrive earlier or later due to shipping conditions.
30-Day Money-Back Guarantee
Shop with confidence – your satisfaction guaranteed
We understand that ordering online from a new brand can feel uncertain. That's why we are committed to delivering high-quality products that are truly worth your investment. We're confident that once you receive your first order, you'll be thrilled with it and become one of our valued returning customers.
To guarantee you a worry-free shopping experience, we offer a free 30-day refund policy. If you have any issues with your order, simply contact us and we'll help you resolve it right away. Your satisfaction and trust are our top priority!
The On-fan favorite re-engineered for an improved fit and even more comfort than ever before.
What our customers say
2.847 reviews
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24 July 2026Unsure about the size, but the advice was spot on!
I was worried the On Cloudmonster might run small, but the size guide on the website was completely accurate. They fit perfectly and the cushioning feels amazing while running.
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21 July 2026
100% authentic New Balance 9060
Honestly, I was a little hesitant at first because they were sold out everywhere. I decided to order and they arrived within two days: 100% authentic and in the original box. Excellent service from RunFlow!
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19 July 2026
Fast delivery before the weekend
I ordered the Nike Pegasus on Thursday afternoon and they arrived on Friday. Took them out for a long run straight away and did not regret it for a second. Highly recommended!
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18 July 2026
Easy size exchange
I accidentally ordered half a size too small. Within three days, I had the correct size without any hassle. Fantastic customer service.
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16 July 2026
No more knee discomfort!
I hesitated because of the price of the On Cloudrunner, but the cushioning is fantastic. Since I started running in them, I no longer experience knee discomfort after 10 km.
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15 July 2026
Perfect fit for wider feet
I often struggle with Nike shoes because they tend to be too narrow. This version has plenty of room around the toes and does not feel tight anywhere.
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14 July 2026
Bought for a holiday and comfortable from day one
I took my New Balance 1906R on a city break to Rome. I walked more than 15 km a day without any blisters or tired feet. Definitely recommended.
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13 July 2026Great shoes, slightly damaged box
The Nike shoes themselves are fantastic and very comfortable. The box was slightly dented during delivery, but thankfully the shoes were in perfect condition.
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11 July 2026
Finally, a store with items actually in stock
The latest On Running models were sold out in my size everywhere, but RunFlow had them available for immediate delivery. Very happy with my purchase!
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10 July 2026
Gentle on the joints
As a beginner, I was worried about getting injured while running on asphalt. The New Balance Fresh Foam makes every run noticeably more comfortable. Very satisfied.
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9 July 2026
Reliable online store
Great communication by email and clear PostNL tracking updates. The product arrived exactly as described.
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12 July 2026
Perfect for my daily runs
Comfortable from the very first kilometre. The cushioning is just right for running on asphalt.
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8 July 2026
Delivered quickly
They arrived within two days and the size matched the size guide perfectly.
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3 July 2026
Great shoe, runs slightly large
The quality is excellent. I probably could have ordered half a size smaller.
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27 June 2026
Ordered a second pair
I was so happy with my first pair that I immediately ordered another one.
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