Fit is the foundation of comfort. Online shopping works best when you use the information you already have—your current shoe size, the socks you wear, how your feet feel after a full day and the way you expect to use the trainers.
Start with the fit you already know
When shopping EU sizes online, compare the size printed inside a well-fitting pair you already own and think about socks, foot width and how you use the shoe. The useful question is not whether a feature sounds impressive, but whether it solves a real problem in your routine.
Stand naturally, lace the shoe as you would outside and walk for several minutes. Your heel should feel controlled without being pinched, your toes should not be forced together, and the upper should not create a hot spot that becomes more obvious with every step.
Check the shoe while standing and walking
Remember that feet can feel slightly different after hours of walking or standing. If your current shoes only feel comfortable first thing in the morning, that is useful information when judging a new pair.
When shopping EU sizes online, compare the size printed inside a well-fitting pair you already own and think about socks, foot width and how you use the shoe. In practice, the best choice is the one that still feels sensible after you remove the marketing language and look only at how the shoe interacts with your foot, your clothes and your routine.
- Check both feet; many people have one foot slightly larger than the other.
- Wear the sock thickness you expect to use most often.
- Walk on a firm surface and pay attention to heel movement and toe pressure.
Think about your full day, not the first minute
Try not to solve every footwear problem with one pair. A trainer that is excellent for everyday city use may not be the right choice for technical running, hiking or severe weather. Keeping the intended use clear makes comparisons more meaningful.
For online shopping, use product descriptions as a filter rather than a substitute for fit. Compare construction, colour, size range and returns information, then choose the option that best matches the role you need the shoe to perform.
How this applies to RAF RAF
Merdane 2349 is the monochrome everyday option: Black/White, breathable upper, soft durable EVA outsole and removable PU insole.
RAF RAF LONDON’s current UK drop is available in EU sizes 40–44. Select your size to check availability.
Final thought
When shopping EU sizes online, compare the size printed inside a well-fitting pair you already own and think about socks, foot width and how you use the shoe. Use that idea as the starting point, then check the practical details: your usual EU size, the clothes you wear most, the amount of walking or standing in your day and the type of cushioning you prefer. A useful trainer earns its place by being worn repeatedly, not by winning a specification contest.
QUICK ANSWERS
Frequently asked questions
What should I prioritise when thinking about EU 40 to 44 trainer sizing?
Prioritise the way the shoe will actually be used: fit, comfort, wardrobe compatibility and the conditions you expect to wear it in.
Does more cushioning always mean more comfort?
No. Cushioning works best when it is paired with a secure fit, suitable flexibility and stable underfoot support.
How do I check RAF RAF size availability?
Select your size to check availability.

