Running Shoe Sizing - Why do Nike, adidas, ASICS, New Balance, Brooks, HOKA, On, Saucony all differ?

When I look at my running shoes I have ones in 4 different sizes (UK 12, 12.5, 13, 13.5) across different brands that all "fit" and that I use regularly so the concept of "true to size" does not seem to work across brands.

In this video, I dive into the shoe sizing guides from Nike, adidas, ASICS, New Balance, Brooks, HOKA ONE ONE, On, Saucony, get my tape measure out to size up both my feet and my shoes to see if I can make any sense of it and so check if I generally have the right size in each brand.

Shoe size guides (UK websites) and video timings:
0:00 Introduction

1:00 Look at some of my shoe boxes

2:28 Example of ideal length shoe for me - Nike Pegasus Turbo 2 in UK 13

2:58 Nike
Men: https://www.nike.com/gb/en_gb/c/size-...
Women: https://www.nike.com/gb/en_gb/sfg/wom...
Russia Men (for cm feet and box sizes): https://www.nike.com/ru/ru_ru/sfg/men...
Russia Women: https://www.nike.com/ru/ru_ru/sfg/wom...

6:00 adidas
Men: https://www.adidas.co.uk/help/size_ch...
Women: https://www.adidas.co.uk/help/size_ch...

8:15 ASICS
https://www.asics.com/gb/en-gb/shoe-s...

9:52 New Balance
https://www.newbalance.co.uk/sizechar...

10:26 Brooks
Men: https://www.brooksrunning.com/en_gb/m...
Women: https://www.brooksrunning.com/en_gb/w...

11:20 HOKA ONE ONE
https://www.hokaoneone.eu/en/gb/sizin...

12:52 On
https://customer-service.on-running.c...

13:41 Saucony
Men: https://www.saucony.com/UK/en_GB/cont...
Women: https://www.saucony.com/UK/en_GB/cont...

14:14 Other Factors - sometimes different shoes even in same brand just come up different

15:21 Summary - some tips on how to determine your size

16:29 Subscribing to my channel
Little word about why this is the first time have ever mentioned subscribing to my challenge in a video - many thanks if you have/will do

17:32 Little update on me and New Balance RC Elite review to come

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