Size? has announced the arrival of the ace N9001 Diadora retro trainer. Here's everything you need to know about them...

What are they: Retro runners.
Who makes them: Renowned Italian sportswear brand Diadora.
Describe them in three words: Vintage. Technical. Supportive.
Where to wear them: These kicks come with a layered foam sole and extra heel support, so they're perfect for wearing to the park or on the road.
What to wear them with: Team with a black or white tee to really make the colours pop.

The N9001 is currently available exclusively at size.co.uk for £50, in sizes 6 to 12.