I love a good pair of trainers; they're great for dressing down an outfit if you don't want to look too overdressed and they're bloody comfy to boot. I always feel like running really fast when I'm wearing trainers because I can't believe how comfortable and cushioned they are compared to most of my other shoes (just me?!) 

I love the colours of this Nike pair - they'll brighten up an outfit but aren't too in-your-face if you like your garmz to err on the simpler side.