I've just had a purple pair of these delivered and they're SO comfy with the airwear sole, better than memory foam as these don't flatten to the shape of your foot, they stay springy! Plenty of space for wide feet and the straps are long enough, I usually have to make an extra hole at the end, or it might be that the 2 stone I've lost have made my ankles smaller too
I love Dr Martens, my purple shimmer boots are still going strong after years of wear and these look very good quality too, so hopefully they'll last years too.
Anyway, I got mine £60 on ebay so saved £20 too http://www.drmartens.com/uk//Women%2527s-Sandals/Dr-Martens-Carolyn-Sandal/p/15699501
I've not been able to wear my boots for a long time because of the pustular psoriasis on my feet which had also caused them to be really swollen, but they've improved a lot since my BG has come down and I can wear the boots again now Which is why I'm looking at their website again, so many gorgeous new styles I'd love to have - the silver hologram boots are tempting me at the moment