47. Nike Air Span
An amazing shoe that's rarely mentioned, the Span was left in the shade by the pricier Stab and lure of exposed Air, although they were picked up by runners looking for something that looked good, performed well and didn't cost the earth. It's imbued with the design elements of the time, but in white, grey and light blue this felt like the lump sum of the previous decade's finest offerings. There's plenty more from this era that don't get the shine they deserve, but this (and not the faintly inferior Span II) deserves a reissue, just so a new generation can appreciate this road running creation.