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The Nike Air Zoom Span are running shoes from Nike. They're my favourite trainers to run in and got me through my first marathon and my first ultra. In this video, I'll review them.
The Span is Nike's mid-support range. They have more support than their standard trainer not as much as their fully supportive offering, the Structure. This allows them to be lighter weight and more flexible than their counterpart.
My favourite feature about them is the lack of any kind of structure in the toe box. It's just a mesh, which is a saviour for someone like me who has big shoes and always finds they are getting caught up in the top of the shoe.
If you are looking for other shoes with mild support and a nice toe box, check out the Brooks Ravenna that I have reviewed here: https://youtu.be/5zGSGdWvA-s